Finding the Fourth Proportional to 1,086.28, 1,498.30 and 754.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.28 : 1,498.30 = 754.79 : x
2. Step 2: Convert to fraction form
   1,086.28/1,498.30 = 754.79/x
3. Step 3: Cross multiply
   1,086.28x = 1,498.30 × 754.79
4. Step 4: Simplify right side
   1,086.28x = 1,130,892.48
5. Step 5: Solve for x
   x = 1,130,892.48/1,086.28
6. Step 6: Final answer
   x = 1,041.07