Finding the Fourth Proportional to 1,086.43, 1,499.27 and 589.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.43 : 1,499.27 = 589.06 : x
2. Step 2: Convert to fraction form
   1,086.43/1,499.27 = 589.06/x
3. Step 3: Cross multiply
   1,086.43x = 1,499.27 × 589.06
4. Step 4: Simplify right side
   1,086.43x = 883,161.73
5. Step 5: Solve for x
   x = 883,161.73/1,086.43
6. Step 6: Final answer
   x = 812.91