Finding the Fourth Proportional to 1,086.43, 1,499.35 and 614.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.43 : 1,499.35 = 614.16 : x
2. Step 2: Convert to fraction form
   1,086.43/1,499.35 = 614.16/x
3. Step 3: Cross multiply
   1,086.43x = 1,499.35 × 614.16
4. Step 4: Simplify right side
   1,086.43x = 920,840.80
5. Step 5: Solve for x
   x = 920,840.80/1,086.43
6. Step 6: Final answer
   x = 847.58