Using the forging recipe at the bottom of the image,
ETH + PNDC + PORK = LAVA
Which means
ETH + PNDC + PORK = $3000
As previously mentioned let’s assume the recipes require equal parts to forge LAVA, therefore,
$1000 ETH + $1000 PNDC + $1000 PORK = $3000 LAVA