Finding the Fourth Proportional to 3,846.87, 5,308.56 and 2,168.24

Step by Step Solution

1. Step 1: Write the proportion equation
   3,846.87 : 5,308.56 = 2,168.24 : x
2. Step 2: Convert to fraction form
   3,846.87/5,308.56 = 2,168.24/x
3. Step 3: Cross multiply
   3,846.87x = 5,308.56 × 2,168.24
4. Step 4: Simplify right side
   3,846.87x = 11,510,205.59
5. Step 5: Solve for x
   x = 11,510,205.59/3,846.87
6. Step 6: Final answer
   x = 2,992.10