Finding the Fourth Proportional to 3,986.84, 5,501.92 and 2,308.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,986.84 : 5,501.92 = 2,308.28 : x
2. Step 2: Convert to fraction form
   3,986.84/5,501.92 = 2,308.28/x
3. Step 3: Cross multiply
   3,986.84x = 5,501.92 × 2,308.28
4. Step 4: Simplify right side
   3,986.84x = 12,699,971.90
5. Step 5: Solve for x
   x = 12,699,971.90/3,986.84
6. Step 6: Final answer
   x = 3,185.47