Finding the Fourth Proportional to 1,122.56, 1,549.36 and 1,034.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,122.56 : 1,549.36 = 1,034.72 : x
2. Step 2: Convert to fraction form
   1,122.56/1,549.36 = 1,034.72/x
3. Step 3: Cross multiply
   1,122.56x = 1,549.36 × 1,034.72
4. Step 4: Simplify right side
   1,122.56x = 1,603,153.78
5. Step 5: Solve for x
   x = 1,603,153.78/1,122.56
6. Step 6: Final answer
   x = 1,428.12