Finding the Fourth Proportional to 2,704.83, 4,056.65 and 856.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,704.83 : 4,056.65 = 856.09 : x
2. Step 2: Convert to fraction form
   2,704.83/4,056.65 = 856.09/x
3. Step 3: Cross multiply
   2,704.83x = 4,056.65 × 856.09
4. Step 4: Simplify right side
   2,704.83x = 3,472,857.50
5. Step 5: Solve for x
   x = 3,472,857.50/2,704.83
6. Step 6: Final answer
   x = 1,283.95