$($CHAPTER $21)$

Today, the exchange rate between the US dollar and Appleland's currency is $$1\mathrm{.}000=$ AAA$6\mathrm{.}599,$ and between the US dollar and Bananaland's currency is $$1\mathrm{.}000=$ BBB$4\mathrm{.}769.$

Calculate the implied cross$-$rate between Appleland's and Bananaland's currencies, expressed as the amount of BBB per one unit of AAA.

Do NOT use units in your answer, and just put your numeric answer.

Round your answer to FOUR decimal places, for example, $1\mathrm{.}2345$