A client sells lip gloss in $3$ colors. the red lip gloss has $246$ customer reviews with an average rating of $4\mathrm{.}1$ stars. The pink lip gloss has $56$ customer reviews with an average rating of $4\mathrm{.}8$ stars. the nude lip gloss has $13$ customer reviews with an average rating of $3\mathrm{.}5$ stars. what is the average customer review rating for all lip gloss variations?