Finding the Fourth Proportional to 2,464.78, 3,401.40 and 1,581.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,464.78 : 3,401.40 = 1,581.10 : x
2. Step 2: Convert to fraction form
   2,464.78/3,401.40 = 1,581.10/x
3. Step 3: Cross multiply
   2,464.78x = 3,401.40 × 1,581.10
4. Step 4: Simplify right side
   2,464.78x = 5,377,953.54
5. Step 5: Solve for x
   x = 5,377,953.54/2,464.78
6. Step 6: Final answer
   x = 2,181.92