Finding the Fourth Proportional to 2,449.72, 3,379.31 and 1,551.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,449.72 : 3,379.31 = 1,551.87 : x
2. Step 2: Convert to fraction form
   2,449.72/3,379.31 = 1,551.87/x
3. Step 3: Cross multiply
   2,449.72x = 3,379.31 × 1,551.87
4. Step 4: Simplify right side
   2,449.72x = 5,244,255.40
5. Step 5: Solve for x
   x = 5,244,255.40/2,449.72
6. Step 6: Final answer
   x = 2,140.76