Finding the Fourth Proportional to 1,152.10, 1,589.52 and 654.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152.10 : 1,589.52 = 654.56 : x
2. Step 2: Convert to fraction form
   1,152.10/1,589.52 = 654.56/x
3. Step 3: Cross multiply
   1,152.10x = 1,589.52 × 654.56
4. Step 4: Simplify right side
   1,152.10x = 1,040,436.21
5. Step 5: Solve for x
   x = 1,040,436.21/1,152.10
6. Step 6: Final answer
   x = 903.08