Finding the Fourth Proportional to 1,086.15, 1,498.83 and 614.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.15 : 1,498.83 = 614.04 : x
2. Step 2: Convert to fraction form
   1,086.15/1,498.83 = 614.04/x
3. Step 3: Cross multiply
   1,086.15x = 1,498.83 × 614.04
4. Step 4: Simplify right side
   1,086.15x = 920,341.57
5. Step 5: Solve for x
   x = 920,341.57/1,086.15
6. Step 6: Final answer
   x = 847.34