If Roberto contributes an amount to their RRSP every beginning quarter for the next $11$ years and then contributes $$1,700$ at each month's end for the subsequent $15$ years, they will have $$1,287,737$ in their RRSP at the end of the $26$ years? Assume that the RRSP earns $8\mathrm{.}75\%$ compounded semiannually. $($Do not round intermediate calculations and round your final answer to $2$ decimal places.$)$

Roberto will have to have $

Roberto will have to make payments $

before the second period to achieve their goal.

at beginning of each quarter for the first $11$ years to achieve this amount.