Finding the Fourth Proportional to 2,569.16, 3,545.31 and 1,434.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,569.16 : 3,545.31 = 1,434.75 : x
2. Step 2: Convert to fraction form
   2,569.16/3,545.31 = 1,434.75/x
3. Step 3: Cross multiply
   2,569.16x = 3,545.31 × 1,434.75
4. Step 4: Simplify right side
   2,569.16x = 5,086,633.52
5. Step 5: Solve for x
   x = 5,086,633.52/2,569.16
6. Step 6: Final answer
   x = 1,979.88