Finding the Fourth Proportional to 3,883.62, 5,822.38 and 2,647.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,883.62 : 5,822.38 = 2,647.96 : x
2. Step 2: Convert to fraction form
   3,883.62/5,822.38 = 2,647.96/x
3. Step 3: Cross multiply
   3,883.62x = 5,822.38 × 2,647.96
4. Step 4: Simplify right side
   3,883.62x = 15,417,429.34
5. Step 5: Solve for x
   x = 15,417,429.34/3,883.62
6. Step 6: Final answer
   x = 3,969.86