Finding the Fourth Proportional to 3,211.54, 4,814.86 and 2,168.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,211.54 : 4,814.86 = 2,168.62 : x
2. Step 2: Convert to fraction form
   3,211.54/4,814.86 = 2,168.62/x
3. Step 3: Cross multiply
   3,211.54x = 4,814.86 × 2,168.62
4. Step 4: Simplify right side
   3,211.54x = 10,441,601.69
5. Step 5: Solve for x
   x = 10,441,601.69/3,211.54
6. Step 6: Final answer
   x = 3,251.28