Confused about American Opportunity Credit and 529 Plan

Am I doing this right? My son received a 1098-T listing the tuition we paid ($3834) and scholarship ($1000). He also received a 1099-Q from the 529 plan we have. Box 1, 2, and 3 all have numbers in them.

 

I (his mom) also received a 1099-Q because some of the 529 distribution went to me. Box 1, 2, 3 have numbers in them, different from what my son's 1099-Q has. I have taken the American Opportunity Credit on my taxes. When I go to fill out my son's taxes, TurboTax is asking me what amount was used on my taxes to calculate the American Opportunity Credit. Is there a specific line I should be looking at on my return? I found the Form 8863 where the AOTC is calculated, but what number am I supposed to enter on my son's taxes? There are a bunch of numbers on that form.

 

Thank you in advance for any help you can provide.