Finding the Fourth Proportional to 1,531.60, 2,113.59 and 942.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,531.60 : 2,113.59 = 942.46 : x
2. Step 2: Convert to fraction form
   1,531.60/2,113.59 = 942.46/x
3. Step 3: Cross multiply
   1,531.60x = 2,113.59 × 942.46
4. Step 4: Simplify right side
   1,531.60x = 1,991,974.03
5. Step 5: Solve for x
   x = 1,991,974.03/1,531.60
6. Step 6: Final answer
   x = 1,300.58