Finding the Fourth Proportional to 2,449.56, 3,671.24 and 1,615

Step by Step Solution

1. Step 1: Write the proportion equation
   2,449.56 : 3,671.24 = 1,615 : x
2. Step 2: Convert to fraction form
   2,449.56/3,671.24 = 1,615/x
3. Step 3: Cross multiply
   2,449.56x = 3,671.24 × 1,615
4. Step 4: Simplify right side
   2,449.56x = 5,929,052.60
5. Step 5: Solve for x
   x = 5,929,052.60/2,449.56
6. Step 6: Final answer
   x = 2,420.46