Finding the Fourth Proportional to 3,993.39, 5,508.72 and 2,500.99

Step by Step Solution

1. Step 1: Write the proportion equation
   3,993.39 : 5,508.72 = 2,500.99 : x
2. Step 2: Convert to fraction form
   3,993.39/5,508.72 = 2,500.99/x
3. Step 3: Cross multiply
   3,993.39x = 5,508.72 × 2,500.99
4. Step 4: Simplify right side
   3,993.39x = 13,777,239.86
5. Step 5: Solve for x
   x = 13,777,239.86/3,993.39
6. Step 6: Final answer
   x = 3,450.01