a charity has recieved donations totaling $2370 but this only 2 fifths of its goal

And I assume you'd like to know its total goal??? If so...

Note that 2/5ths represents only 2 "parts" of their goal. So 2370/2 = $1185. So, each part is $1185. And 5 parts is the total goal, so......5 x $1185 = $5925