Finding the Fourth Proportional to 3,986.19, 5,500.35 and 2,493.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,986.19 : 5,500.35 = 2,493.59 : x
2. Step 2: Convert to fraction form
   3,986.19/5,500.35 = 2,493.59/x
3. Step 3: Cross multiply
   3,986.19x = 5,500.35 × 2,493.59
4. Step 4: Simplify right side
   3,986.19x = 13,715,590.25
5. Step 5: Solve for x
   x = 13,715,590.25/3,986.19
6. Step 6: Final answer
   x = 3,440.78