Finding the Fourth Proportional to 2,581.77, 3,872.31 and 733.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,581.77 : 3,872.31 = 733.05 : x
2. Step 2: Convert to fraction form
   2,581.77/3,872.31 = 733.05/x
3. Step 3: Cross multiply
   2,581.77x = 3,872.31 × 733.05
4. Step 4: Simplify right side
   2,581.77x = 2,838,594.10
5. Step 5: Solve for x
   x = 2,838,594.10/2,581.77
6. Step 6: Final answer
   x = 1,099.47