stimulus check question

My family in 2021(me, wife and our kid) got stimulus check of 4200$ bank deposit. I believe its (1400 + 1400 + 1400, since we are three) . When i am filing tax returns on turbo tax, i got a question to confirm the amount received by me and my wife  via stimulus, should i put 4200$ (that include kid) or 2800 (just for me and my wife)? we don't have 6457, lost it somewhere, but i did login into IRS account and saw my profile and it is showing 2100,$ i am assuming my wife IRS account also shows 2100$, does it mean they split my kid 1400 $into  (700 + 700) and showing in our 6457(or in  irs account) ? 
please let me know should we enter 4200$ or 2800$?