$4000 compounded annually at 3% for 20 years
$${\mathtt{4\,000}}{\mathtt{\,\times\,}}{\left({\mathtt{1.03}}\right)}^{{\mathtt{20}}} = {\mathtt{7\,224.444\: \!938\: \!677\: \!655\: \!247}}$$
$7224.44