Your grandfather started his own business $52$ years ago. He opened an investment account at

the end of his third month of business and contributed $x$.$ Every three months since then, he

faithfully saved another $$x.$ His savings account has earned an average rate of $7\mathrm{.}45$ percent

annually. Today, his account is valued at $$289,209\mathrm{.}11.$ How much did your grandfather save

every three months assuming he saved the same amount each time? Show how to solve on

the TI $-$ BAII

Multiple Choice

$$284\mathrm{.}02$

$$$$118\mathrm{.}52$

$$$$331\mathrm{.}09$

$$226\mathrm{.}78$

$$262\mathrm{.}25$