Finding the Fourth Proportional to 2,704.47, 4,055.49 and 855.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,704.47 : 4,055.49 = 855.24 : x
2. Step 2: Convert to fraction form
   2,704.47/4,055.49 = 855.24/x
3. Step 3: Cross multiply
   2,704.47x = 4,055.49 × 855.24
4. Step 4: Simplify right side
   2,704.47x = 3,468,417.27
5. Step 5: Solve for x
   x = 3,468,417.27/2,704.47
6. Step 6: Final answer
   x = 1,282.48