Finding the Fourth Proportional to 3,164.82, 4,363.35 and 2,168.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,164.82 : 4,363.35 = 2,168.31 : x
2. Step 2: Convert to fraction form
   3,164.82/4,363.35 = 2,168.31/x
3. Step 3: Cross multiply
   3,164.82x = 4,363.35 × 2,168.31
4. Step 4: Simplify right side
   3,164.82x = 9,461,103.67
5. Step 5: Solve for x
   x = 9,461,103.67/3,164.82
6. Step 6: Final answer
   x = 2,989.46