Question $1[5$ points$]$

For the past $21$ years, Eric has contributed $$660$ to his RRSP at the beginning of every month. The plan earned $7\mathrm{.}80\%$ compounded quarterly for the first $11$ years and $7\mathrm{.}60\%$ compounded monthly for the subsequent $10$ years. What is the value of his RRSP today? Assume Eric did not make a payment today. For full marks your answer$($s$)$ should be rounded to the nearest cent. $$