Finding the Fourth Proportional to 3,196.46, 4,816.42 and 2,660.64

Step by Step Solution

1. Step 1: Write the proportion equation
   3,196.46 : 4,816.42 = 2,660.64 : x
2. Step 2: Convert to fraction form
   3,196.46/4,816.42 = 2,660.64/x
3. Step 3: Cross multiply
   3,196.46x = 4,816.42 × 2,660.64
4. Step 4: Simplify right side
   3,196.46x = 12,814,759.71
5. Step 5: Solve for x
   x = 12,814,759.71/3,196.46
6. Step 6: Final answer
   x = 4,009.05