Finding the Fourth Proportional to 3,986.34, 5,500.41 and 2,307.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,986.34 : 5,500.41 = 2,307.81 : x
2. Step 2: Convert to fraction form
   3,986.34/5,500.41 = 2,307.81/x
3. Step 3: Cross multiply
   3,986.34x = 5,500.41 × 2,307.81
4. Step 4: Simplify right side
   3,986.34x = 12,693,901.20
5. Step 5: Solve for x
   x = 12,693,901.20/3,986.34
6. Step 6: Final answer
   x = 3,184.35