Finding the Fourth Proportional to 3,056.50, 4,584.72 and 864.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,056.50 : 4,584.72 = 864.94 : x
2. Step 2: Convert to fraction form
   3,056.50/4,584.72 = 864.94/x
3. Step 3: Cross multiply
   3,056.50x = 4,584.72 × 864.94
4. Step 4: Simplify right side
   3,056.50x = 3,965,507.72
5. Step 5: Solve for x
   x = 3,965,507.72/3,056.50
6. Step 6: Final answer
   x = 1,297.40