Ian Shields Communications, Inc., a cellular communications provider based in Michigan, has determined that its average CLV per customer is $$1,210.$ Last year, the company obtained $57,100$ new customers while spending $$3\mathrm{.}15$ million on advertising and promotion. In terms of personnel and operational costs, they spent $$5\mathrm{.}27$ million on their sales force and the total cost of their retail stores was $$16\mathrm{.}60$ million, of which approximately $79\%$ supported service and operations and CALCULATED VARIABLES: the remainder was deemed for marketing and sales. Finally, corporate overhead was $$3\mathrm{.}99$ million.

What are the total marketing and sales costs for lan Shields for last year?

$3\mathrm{.}486$ is INCORRECT.