Finding the Fourth Proportional to 2,545.79, 3,513.40 and 1,426.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,545.79 : 3,513.40 = 1,426.68 : x
2. Step 2: Convert to fraction form
   2,545.79/3,513.40 = 1,426.68/x
3. Step 3: Cross multiply
   2,545.79x = 3,513.40 × 1,426.68
4. Step 4: Simplify right side
   2,545.79x = 5,012,493.95
5. Step 5: Solve for x
   x = 5,012,493.95/2,545.79
6. Step 6: Final answer
   x = 1,968.94