Finding the Fourth Proportional to 2,854.37, 4,281.98 and 879.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,854.37 : 4,281.98 = 879.59 : x
2. Step 2: Convert to fraction form
   2,854.37/4,281.98 = 879.59/x
3. Step 3: Cross multiply
   2,854.37x = 4,281.98 × 879.59
4. Step 4: Simplify right side
   2,854.37x = 3,766,386.79
5. Step 5: Solve for x
   x = 3,766,386.79/2,854.37
6. Step 6: Final answer
   x = 1,319.52