Finding the Fourth Proportional to 2,499.04, 3,449.78 and 1,615.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499.04 : 3,449.78 = 1,615.28 : x
2. Step 2: Convert to fraction form
   2,499.04/3,449.78 = 1,615.28/x
3. Step 3: Cross multiply
   2,499.04x = 3,449.78 × 1,615.28
4. Step 4: Simplify right side
   2,499.04x = 5,572,347.43
5. Step 5: Solve for x
   x = 5,572,347.43/2,499.04
6. Step 6: Final answer
   x = 2,229.80