Finding the Fourth Proportional to 1,152.26, 1,590.18 and 654.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152.26 : 1,590.18 = 654.89 : x
2. Step 2: Convert to fraction form
   1,152.26/1,590.18 = 654.89/x
3. Step 3: Cross multiply
   1,152.26x = 1,590.18 × 654.89
4. Step 4: Simplify right side
   1,152.26x = 1,041,392.98
5. Step 5: Solve for x
   x = 1,041,392.98/1,152.26
6. Step 6: Final answer
   x = 903.78