Finding the Fourth Proportional to 2,545.48, 3,512.89 and 1,426.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,545.48 : 3,512.89 = 1,426.77 : x
2. Step 2: Convert to fraction form
   2,545.48/3,512.89 = 1,426.77/x
3. Step 3: Cross multiply
   2,545.48x = 3,512.89 × 1,426.77
4. Step 4: Simplify right side
   2,545.48x = 5,012,101.74
5. Step 5: Solve for x
   x = 5,012,101.74/2,545.48
6. Step 6: Final answer
   x = 1,969.02