Finding the Fourth Proportional to 2,581.83, 3,874.16 and 1,120.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,581.83 : 3,874.16 = 1,120.99 : x
2. Step 2: Convert to fraction form
   2,581.83/3,874.16 = 1,120.99/x
3. Step 3: Cross multiply
   2,581.83x = 3,874.16 × 1,120.99
4. Step 4: Simplify right side
   2,581.83x = 4,342,894.62
5. Step 5: Solve for x
   x = 4,342,894.62/2,581.83
6. Step 6: Final answer
   x = 1,682.10