Finding the Fourth Proportional to 2,545.87, 3,513.11 and 1,426.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,545.87 : 3,513.11 = 1,426.59 : x
2. Step 2: Convert to fraction form
   2,545.87/3,513.11 = 1,426.59/x
3. Step 3: Cross multiply
   2,545.87x = 3,513.11 × 1,426.59
4. Step 4: Simplify right side
   2,545.87x = 5,011,782.38
5. Step 5: Solve for x
   x = 5,011,782.38/2,545.87
6. Step 6: Final answer
   x = 1,968.59