Answer:
$3930.56
Explanation:
The sum of her required payments is ...
$950 +238 +149 +78 = $1415
In order for that to be 36% of her income, she must have income that matches ...
1415 = 0.36 × income . . . . . . . to solve, we divide this equation by 0.36
1415/0.36 = income ≈ 3930.56
Gina's gross monthly income would need to be $3930.56 to get approved.
_____
Comment on this answer
Often the DTI calculation will include the proposed loan payment. If that is the case, we would need to know the amount of the payment on the loan Gina is applying for. That amount would be added to her existing debt before dividing by 0.36.