Finding the Fourth Proportional to 1,152.81, 1,590.82 and 655.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152.81 : 1,590.82 = 655.39 : x
2. Step 2: Convert to fraction form
   1,152.81/1,590.82 = 655.39/x
3. Step 3: Cross multiply
   1,152.81x = 1,590.82 × 655.39
4. Step 4: Simplify right side
   1,152.81x = 1,042,616.03
5. Step 5: Solve for x
   x = 1,042,616.03/1,152.81
6. Step 6: Final answer
   x = 904.41