Finding the Fourth Proportional to 1,152.42, 1,590.30 and 655.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152.42 : 1,590.30 = 655.05 : x
2. Step 2: Convert to fraction form
   1,152.42/1,590.30 = 655.05/x
3. Step 3: Cross multiply
   1,152.42x = 1,590.30 × 655.05
4. Step 4: Simplify right side
   1,152.42x = 1,041,726.02
5. Step 5: Solve for x
   x = 1,041,726.02/1,152.42
6. Step 6: Final answer
   x = 903.95