Finding the Fourth Proportional to 2,500.35, 3,751.02 and 856.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,500.35 : 3,751.02 = 856.95 : x
2. Step 2: Convert to fraction form
   2,500.35/3,751.02 = 856.95/x
3. Step 3: Cross multiply
   2,500.35x = 3,751.02 × 856.95
4. Step 4: Simplify right side
   2,500.35x = 3,214,436.59
5. Step 5: Solve for x
   x = 3,214,436.59/2,500.35
6. Step 6: Final answer
   x = 1,285.59