Finding the Fourth Proportional to 3,951.46, 5,914.86 and 2,912.64

Step by Step Solution

1. Step 1: Write the proportion equation
   3,951.46 : 5,914.86 = 2,912.64 : x
2. Step 2: Convert to fraction form
   3,951.46/5,914.86 = 2,912.64/x
3. Step 3: Cross multiply
   3,951.46x = 5,914.86 × 2,912.64
4. Step 4: Simplify right side
   3,951.46x = 17,227,857.83
5. Step 5: Solve for x
   x = 17,227,857.83/3,951.46
6. Step 6: Final answer
   x = 4,359.87