Finding the Fourth Proportional to 1,089.61, 1,503.69 and 592.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,089.61 : 1,503.69 = 592.27 : x
2. Step 2: Convert to fraction form
   1,089.61/1,503.69 = 592.27/x
3. Step 3: Cross multiply
   1,089.61x = 1,503.69 × 592.27
4. Step 4: Simplify right side
   1,089.61x = 890,586.72
5. Step 5: Solve for x
   x = 890,586.72/1,089.61
6. Step 6: Final answer
   x = 817.35