To account for the customized repayment plan, we can break down the total

number of payments into three periods:

Period $1$: Month $1-36,C=x,n=36$

Period $2$: Month $37-84,C=5x,n=48$

Period $3$: Month $85-240,C=12x,n=156$

Using the present value formula, we can set up the following equation:

Simplifying and solving for X using Solver or Goal Seek in Excel, we get:

$x=$$$292\mathrm{.}21$

CAN YOU PLEASE BREAK DOWN THE STEPS TO HOW THIS IS DONE IN EXCEL USING SOLVER