im having a hard time on how the future value factor was found. if you could post a step by step on how to solve these sort of problems i would greatly apperciate it! thank you!

Milo decides to invest $1.500 in a savings account every year at the beginning of the year for 10 years. Assuming an interest rate of 7%, how much will Milo have at the end of the 10th year? (Round your answer to the nearest dollar) O $22,175 $20.725 Reason: $1,500 x 14.7836 (ie, FVAD, the future value of annuity due, factor at 7% for 10 periods) - $22,175