Finding the Fourth Proportional to 2,581.34, 3,873.42 and 1,120.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,581.34 : 3,873.42 = 1,120.49 : x
2. Step 2: Convert to fraction form
   2,581.34/3,873.42 = 1,120.49/x
3. Step 3: Cross multiply
   2,581.34x = 3,873.42 × 1,120.49
4. Step 4: Simplify right side
   2,581.34x = 4,340,128.38
5. Step 5: Solve for x
   x = 4,340,128.38/2,581.34
6. Step 6: Final answer
   x = 1,681.35