Assume NYIT had completed an addition, in the year of $2019,$ that cost $$3,000,000$ when th relevant cost index was $206.$

Today, when the latest cost index is $269,$ they wish to build a similar addition which is $50\%$ larger. For this estimate the parametric factor is $0\mathrm{.}7.$

What is today's estimated cost based on the above?

$($Note: ${1\mathrm{.}5}^{{?}^{{?}^{?}}}0\mathrm{.}7={1\mathrm{.}5}^{****0\mathrm{.}7}=1\mathrm{.}3282)$B