Finding the Fourth Proportional to 2,545.76, 3,513.15 and 1,426.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,545.76 : 3,513.15 = 1,426.71 : x
2. Step 2: Convert to fraction form
   2,545.76/3,513.15 = 1,426.71/x
3. Step 3: Cross multiply
   2,545.76x = 3,513.15 × 1,426.71
4. Step 4: Simplify right side
   2,545.76x = 5,012,221.54
5. Step 5: Solve for x
   x = 5,012,221.54/2,545.76
6. Step 6: Final answer
   x = 1,968.85