Finding the Fourth Proportional to 1,557.57, 2,149.89 and 1,061.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,557.57 : 2,149.89 = 1,061.04 : x
2. Step 2: Convert to fraction form
   1,557.57/2,149.89 = 1,061.04/x
3. Step 3: Cross multiply
   1,557.57x = 2,149.89 × 1,061.04
4. Step 4: Simplify right side
   1,557.57x = 2,281,119.29
5. Step 5: Solve for x
   x = 2,281,119.29/1,557.57
6. Step 6: Final answer
   x = 1,464.54