Finding the Fourth Proportional to 1,096.42, 1,513.20 and 624.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.42 : 1,513.20 = 624.33 : x
2. Step 2: Convert to fraction form
   1,096.42/1,513.20 = 624.33/x
3. Step 3: Cross multiply
   1,096.42x = 1,513.20 × 624.33
4. Step 4: Simplify right side
   1,096.42x = 944,736.16
5. Step 5: Solve for x
   x = 944,736.16/1,096.42
6. Step 6: Final answer
   x = 861.66