Finding the Fourth Proportional to 2,281.72, 3,149.96 and 1,581.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,281.72 : 3,149.96 = 1,581.88 : x
2. Step 2: Convert to fraction form
   2,281.72/3,149.96 = 1,581.88/x
3. Step 3: Cross multiply
   2,281.72x = 3,149.96 × 1,581.88
4. Step 4: Simplify right side
   2,281.72x = 4,982,858.72
5. Step 5: Solve for x
   x = 4,982,858.72/2,281.72
6. Step 6: Final answer
   x = 2,183.82