Finding the Fourth Proportional to 2,500.12, 3,449.10 and 1,615.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,500.12 : 3,449.10 = 1,615.60 : x
2. Step 2: Convert to fraction form
   2,500.12/3,449.10 = 1,615.60/x
3. Step 3: Cross multiply
   2,500.12x = 3,449.10 × 1,615.60
4. Step 4: Simplify right side
   2,500.12x = 5,572,365.96
5. Step 5: Solve for x
   x = 5,572,365.96/2,500.12
6. Step 6: Final answer
   x = 2,228.84