You want to take an island vacation in $9$ years and plan to start saving today. The entire trip will cost $$5,638.$ You believe that you can earn an annual rate of $7\mathrm{.}2\%$ through your various investments. How much must you set aside today in order to accumulate the $$5,638?$ Submit your final answer rounded to two decimal places $($Ex$.$ $$0\mathrm{.}00).$