Finding the Fourth Proportional to 3,986.22, 5,500.55 and 2,308.17

Step by Step Solution

1. Step 1: Write the proportion equation
   3,986.22 : 5,500.55 = 2,308.17 : x
2. Step 2: Convert to fraction form
   3,986.22/5,500.55 = 2,308.17/x
3. Step 3: Cross multiply
   3,986.22x = 5,500.55 × 2,308.17
4. Step 4: Simplify right side
   3,986.22x = 12,696,192.95
5. Step 5: Solve for x
   x = 12,696,192.95/3,986.22
6. Step 6: Final answer
   x = 3,185.02