Finding the Fourth Proportional to 2,569.52, 3,545.78 and 1,507.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,569.52 : 3,545.78 = 1,507.13 : x
2. Step 2: Convert to fraction form
   2,569.52/3,545.78 = 1,507.13/x
3. Step 3: Cross multiply
   2,569.52x = 3,545.78 × 1,507.13
4. Step 4: Simplify right side
   2,569.52x = 5,343,964.04
5. Step 5: Solve for x
   x = 5,343,964.04/2,569.52
6. Step 6: Final answer
   x = 2,079.76