Finding the Fourth Proportional to 1,110.52, 1,532.53 and 613.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,110.52 : 1,532.53 = 613.15 : x
2. Step 2: Convert to fraction form
   1,110.52/1,532.53 = 613.15/x
3. Step 3: Cross multiply
   1,110.52x = 1,532.53 × 613.15
4. Step 4: Simplify right side
   1,110.52x = 939,665.55
5. Step 5: Solve for x
   x = 939,665.55/1,110.52
6. Step 6: Final answer
   x = 846.15