Finding the Fourth Proportional to 1,134.12, 1,557.60 and 1,002.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,134.12 : 1,557.60 = 1,002.96 : x
2. Step 2: Convert to fraction form
   1,134.12/1,557.60 = 1,002.96/x
3. Step 3: Cross multiply
   1,134.12x = 1,557.60 × 1,002.96
4. Step 4: Simplify right side
   1,134.12x = 1,562,210.50
5. Step 5: Solve for x
   x = 1,562,210.50/1,134.12
6. Step 6: Final answer
   x = 1,377.46