Finding the Fourth Proportional to 1,126.89, 1,555.07 and 654.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,126.89 : 1,555.07 = 654.72 : x
2. Step 2: Convert to fraction form
   1,126.89/1,555.07 = 654.72/x
3. Step 3: Cross multiply
   1,126.89x = 1,555.07 × 654.72
4. Step 4: Simplify right side
   1,126.89x = 1,018,132.16
5. Step 5: Solve for x
   x = 1,018,132.16/1,126.89
6. Step 6: Final answer
   x = 903.49