Finding the Fourth Proportional to 2,581.05, 3,878.37 and 1,411.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,581.05 : 3,878.37 = 1,411.83 : x
2. Step 2: Convert to fraction form
   2,581.05/3,878.37 = 1,411.83/x
3. Step 3: Cross multiply
   2,581.05x = 3,878.37 × 1,411.83
4. Step 4: Simplify right side
   2,581.05x = 5,475,599.12
5. Step 5: Solve for x
   x = 5,475,599.12/2,581.05
6. Step 6: Final answer
   x = 2,121.46