Finding the Fourth Proportional to 2,441.78, 3,662.60 and 980.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,441.78 : 3,662.60 = 980.54 : x
2. Step 2: Convert to fraction form
   2,441.78/3,662.60 = 980.54/x
3. Step 3: Cross multiply
   2,441.78x = 3,662.60 × 980.54
4. Step 4: Simplify right side
   2,441.78x = 3,591,302.59
5. Step 5: Solve for x
   x = 3,591,302.59/2,441.78
6. Step 6: Final answer
   x = 1,470.78