Finding the Fourth Proportional to 2,545.78, 3,513.01 and 1,411.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,545.78 : 3,513.01 = 1,411.38 : x
2. Step 2: Convert to fraction form
   2,545.78/3,513.01 = 1,411.38/x
3. Step 3: Cross multiply
   2,545.78x = 3,513.01 × 1,411.38
4. Step 4: Simplify right side
   2,545.78x = 4,958,192.05
5. Step 5: Solve for x
   x = 4,958,192.05/2,545.78
6. Step 6: Final answer
   x = 1,947.61