Finding the Fourth Proportional to 1,086.76, 1,499.75 and 614.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.76 : 1,499.75 = 614.73 : x
2. Step 2: Convert to fraction form
   1,086.76/1,499.75 = 614.73/x
3. Step 3: Cross multiply
   1,086.76x = 1,499.75 × 614.73
4. Step 4: Simplify right side
   1,086.76x = 921,946.17
5. Step 5: Solve for x
   x = 921,946.17/1,086.76
6. Step 6: Final answer
   x = 848.34