Yes, all your responses look correct. Your mortgage interest deduction is based on the interest paid on your loans, which is the sum of Box 1.
Since you acquired your home before December 15, 2017 and have not taken any cash out with the refinances, your deductible interest is limited if your outstanding mortgage principal in Box 3 exceeds $1 million. Without knowing specifics about your interest paid, other itemized deductions, or how much your standard deduction is, I can't specifically state whether TurboTax is calculating everything correctly. However, if you answered the questions as you said, that should correctly apply the limit.
Please note that once you make all three entries and it returns you to the Home loan deduction summary screen, click Done. If your average balance exceeds $750,000 TurboTax will ask you a few follow-up questions. Answer Yes to Do either of these apply to this loan? TurboTax will correctly apply the proper mortgage limit on your home acquisition debt. If you did not answer this, TurboTax will be applying the $750,000 limit that applies to homes purchased after 2017.
You will then enter the balances for all your loans. TurboTax determines the average balance using the balance of the first month (the amount reported in Box 3) and the last month which is the amount reported as of January 1, 2022. This might also shave a few dollars off your taxes since your average balance will be lower than the box 3 amount.
