Finding the Fourth Proportional to 3,994.24, 5,511.72 and 2,499.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,994.24 : 5,511.72 = 2,499.88 : x
2. Step 2: Convert to fraction form
   3,994.24/5,511.72 = 2,499.88/x
3. Step 3: Cross multiply
   3,994.24x = 5,511.72 × 2,499.88
4. Step 4: Simplify right side
   3,994.24x = 13,778,638.59
5. Step 5: Solve for x
   x = 13,778,638.59/3,994.24
6. Step 6: Final answer
   x = 3,449.63