Finding the Fourth Proportional to 1,086.24, 1,499.02 and 588.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.24 : 1,499.02 = 588.88 : x
2. Step 2: Convert to fraction form
   1,086.24/1,499.02 = 588.88/x
3. Step 3: Cross multiply
   1,086.24x = 1,499.02 × 588.88
4. Step 4: Simplify right side
   1,086.24x = 882,746.11
5. Step 5: Solve for x
   x = 882,746.11/1,086.24
6. Step 6: Final answer
   x = 812.66