Finding the Fourth Proportional to 2,545.27, 3,512.55 and 1,426.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,545.27 : 3,512.55 = 1,426.21 : x
2. Step 2: Convert to fraction form
   2,545.27/3,512.55 = 1,426.21/x
3. Step 3: Cross multiply
   2,545.27x = 3,512.55 × 1,426.21
4. Step 4: Simplify right side
   2,545.27x = 5,009,633.94
5. Step 5: Solve for x
   x = 5,009,633.94/2,545.27
6. Step 6: Final answer
   x = 1,968.21