Finding the Fourth Proportional to 1,086.55, 1,499.47 and 614.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.55 : 1,499.47 = 614.46 : x
2. Step 2: Convert to fraction form
   1,086.55/1,499.47 = 614.46/x
3. Step 3: Cross multiply
   1,086.55x = 1,499.47 × 614.46
4. Step 4: Simplify right side
   1,086.55x = 921,364.34
5. Step 5: Solve for x
   x = 921,364.34/1,086.55
6. Step 6: Final answer
   x = 847.98