Respuesta :

300/x=100/84
(300/x)*x=(100/84)*x       - we multiply both sides of the equation by x
300=1.19047619048*x       - we divide both sides of the equation by (1.19047619048) to get x
300/1.19047619048=x 
252=x 
x=252
100% =300
84%= 252
You have to multiply 84x300, then divide it by 100.