Suppose that currently, $1$ British pound equals $1\mathrm{.}98$ U$.$S$.$ dollars and $1$ U$.$S$.$ dollar equals $1\mathrm{.}90$ Swiss francs. How many Swiss francs are needed to purchase $1$ pound?

$3\mathrm{.}5739$

$3\mathrm{.}8372$

$4\mathrm{.}4015$

$28591$

$3\mathrm{.}7620$