$1.$In order to have $$398,721$ in $26$ years, how much needs to be deposited each month into a bank account whose annual rate is $1\mathrm{.}7\%$ with monthly compounding? $2.$ Each day, you deposit $$3\mathrm{.}27$ into a bank account whose annual rate is $2\mathrm{.}5\%$ with daily compounding. How much interest will you have earned after $11$ years?