Finding the Fourth Proportional to 2,854.38, 4,281.63 and 980.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,854.38 : 4,281.63 = 980.72 : x
2. Step 2: Convert to fraction form
   2,854.38/4,281.63 = 980.72/x
3. Step 3: Cross multiply
   2,854.38x = 4,281.63 × 980.72
4. Step 4: Simplify right side
   2,854.38x = 4,199,058.77
5. Step 5: Solve for x
   x = 4,199,058.77/2,854.38
6. Step 6: Final answer
   x = 1,471.09