Finding the Fourth Proportional to 2,704.27, 4,057.01 and 855.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,704.27 : 4,057.01 = 855.50 : x
2. Step 2: Convert to fraction form
   2,704.27/4,057.01 = 855.50/x
3. Step 3: Cross multiply
   2,704.27x = 4,057.01 × 855.50
4. Step 4: Simplify right side
   2,704.27x = 3,470,753.91
5. Step 5: Solve for x
   x = 3,470,753.91/2,704.27
6. Step 6: Final answer
   x = 1,283.44