@GanaVK assuming that your broker on the 1099-div used only the total foreign taxes paid ( Box 7) and various for Box 8, then clearly IRS AUR program will check the total foreign tax. Generally that is what they do and then in the back up docs they detail the countries and amounts of foreign tax to each country.. Therefore I see no issue in totaling the three lines i.e. country as Various and amount as sum-total of all the foreign taxes paid. Note if you choose NOT to take the safe harbor ( ref'd in my earlier response) or your total foreign tax is above the safe harbor threshold you have to decide which is more beneficial ( safe harbor or form 1116 with its limitations). Also for form 1116 you will have to enter the total Foreign income/ dividends from these three foreign sources ----- form 1116 does allow you to break down of the countries.
Is there more I can do for you ?
Namaste ji
pk
