Finding the Fourth Proportional to 1,089.42, 1,503.40 and 592.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,089.42 : 1,503.40 = 592.06 : x
2. Step 2: Convert to fraction form
   1,089.42/1,503.40 = 592.06/x
3. Step 3: Cross multiply
   1,089.42x = 1,503.40 × 592.06
4. Step 4: Simplify right side
   1,089.42x = 890,103.00
5. Step 5: Solve for x
   x = 890,103.00/1,089.42
6. Step 6: Final answer
   x = 817.04