Finding the Fourth Proportional to 2,704.69, 4,056.68 and 855.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,704.69 : 4,056.68 = 855.82 : x
2. Step 2: Convert to fraction form
   2,704.69/4,056.68 = 855.82/x
3. Step 3: Cross multiply
   2,704.69x = 4,056.68 × 855.82
4. Step 4: Simplify right side
   2,704.69x = 3,471,772.27
5. Step 5: Solve for x
   x = 3,471,772.27/2,704.69
6. Step 6: Final answer
   x = 1,283.61