Holly's Art Galleries recently reported $$15\mathrm{.}8$ million of net income. Its EBIT was $$23$ million, and its federal tax rate was $21\%($ignore any possible state corporate taxes$).$ What was its interest expense? $($Hint: Write out the headings for an income statement and then fill in the known values. Then divide $$15\mathrm{.}8$ million net income by $1$ T $=0\mathrm{.}79$ to find the pre$-$tax income. The difference between EBIT and taxable income must be the interest expense.$)$ Enter your answer in dollars. For example, an answer of $$1\mathrm{.}2$ million should be entered as $1,200,000.$ Round your answer to the nearest dollar.