Finding the Fourth Proportional to 2,465.82, 3,400.65 and 1,581.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,465.82 : 3,400.65 = 1,581.30 : x
2. Step 2: Convert to fraction form
   2,465.82/3,400.65 = 1,581.30/x
3. Step 3: Cross multiply
   2,465.82x = 3,400.65 × 1,581.30
4. Step 4: Simplify right side
   2,465.82x = 5,377,447.85
5. Step 5: Solve for x
   x = 5,377,447.85/2,465.82
6. Step 6: Final answer
   x = 2,180.79