Finding the Fourth Proportional to 1,112.66, 1,535.34 and 615.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,112.66 : 1,535.34 = 615.27 : x
2. Step 2: Convert to fraction form
   1,112.66/1,535.34 = 615.27/x
3. Step 3: Cross multiply
   1,112.66x = 1,535.34 × 615.27
4. Step 4: Simplify right side
   1,112.66x = 944,651.52
5. Step 5: Solve for x
   x = 944,651.52/1,112.66
6. Step 6: Final answer
   x = 849.00