Finding the Fourth Proportional to 1,086.73, 1,499.57 and 614.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.73 : 1,499.57 = 614.68 : x
2. Step 2: Convert to fraction form
   1,086.73/1,499.57 = 614.68/x
3. Step 3: Cross multiply
   1,086.73x = 1,499.57 × 614.68
4. Step 4: Simplify right side
   1,086.73x = 921,751.17
5. Step 5: Solve for x
   x = 921,751.17/1,086.73
6. Step 6: Final answer
   x = 848.19