A man receives a loan of $$x.$ A payment of $$821$ is made $68$ days later. A second payment of $$856$ is paid $122$ days after the first payment. A third payment of $$537$ is due $21$ days after the second payment, after which the loan balance is $0.$ The loan is charged a simple interest rate of $r=5\mathrm{.}5\%.$ What is X$,$ if the Declining Balance Method is used?

Answer: $ $$