Finding the Fourth Proportional to 2,735.78, 4,103.22 and 980.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,735.78 : 4,103.22 = 980.42 : x
2. Step 2: Convert to fraction form
   2,735.78/4,103.22 = 980.42/x
3. Step 3: Cross multiply
   2,735.78x = 4,103.22 × 980.42
4. Step 4: Simplify right side
   2,735.78x = 4,022,878.95
5. Step 5: Solve for x
   x = 4,022,878.95/2,735.78
6. Step 6: Final answer
   x = 1,470.47