Finding the Fourth Proportional to 2,545.30, 3,512.48 and 1,426.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,545.30 : 3,512.48 = 1,426.28 : x
2. Step 2: Convert to fraction form
   2,545.30/3,512.48 = 1,426.28/x
3. Step 3: Cross multiply
   2,545.30x = 3,512.48 × 1,426.28
4. Step 4: Simplify right side
   2,545.30x = 5,009,792.32
5. Step 5: Solve for x
   x = 5,009,792.32/2,545.30
6. Step 6: Final answer
   x = 1,968.25