The inventory records for Flame Company reflected the following

Beginning inventory on May $1$

$1,200$ units @$$4\mathrm{.}00$

First purchase on May $7$

$1,300$ units @ $$4\mathrm{.}20$

Second purchase on May $17$

$1,500$ units @ $$4\mathrm{.}30$

Third purchase on May $23$

$1,100$ units @ $$4\mathrm{.}40$

Sale on May $31$

$4,000$ units @ $$5\mathrm{.}90$

What is the amount of ending inventory assuming the FIFO cost flow method is used?