Finding the Fourth Proportional to 1,089.46, 1,503.46 and 592.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,089.46 : 1,503.46 = 592.10 : x
2. Step 2: Convert to fraction form
   1,089.46/1,503.46 = 592.10/x
3. Step 3: Cross multiply
   1,089.46x = 1,503.46 × 592.10
4. Step 4: Simplify right side
   1,089.46x = 890,195.71
5. Step 5: Solve for x
   x = 890,195.71/1,089.46
6. Step 6: Final answer
   x = 817.10