Finding the Fourth Proportional to 1,086.16, 1,498.96 and 614.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.16 : 1,498.96 = 614.07 : x
2. Step 2: Convert to fraction form
   1,086.16/1,498.96 = 614.07/x
3. Step 3: Cross multiply
   1,086.16x = 1,498.96 × 614.07
4. Step 4: Simplify right side
   1,086.16x = 920,463.30
5. Step 5: Solve for x
   x = 920,463.30/1,086.16
6. Step 6: Final answer
   x = 847.45