How much would you need to invest monthly to have $$1\mathrm{.}6$ million in $30$ years? You have access to a $8\%$ APR investment account.

$$20,238\mathrm{.}26$

$$4,444\mathrm{.}444$

$$1,073\mathrm{.}57$

$$1,260\mathrm{.}61$