Finding the Fourth Proportional to 3,056.52, 4,584.20 and 864.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,056.52 : 4,584.20 = 864.72 : x
2. Step 2: Convert to fraction form
   3,056.52/4,584.20 = 864.72/x
3. Step 3: Cross multiply
   3,056.52x = 4,584.20 × 864.72
4. Step 4: Simplify right side
   3,056.52x = 3,964,049.42
5. Step 5: Solve for x
   x = 3,964,049.42/3,056.52
6. Step 6: Final answer
   x = 1,296.92