Finding the Fourth Proportional to 2,736.27, 4,103.37 and 980.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,736.27 : 4,103.37 = 980.78 : x
2. Step 2: Convert to fraction form
   2,736.27/4,103.37 = 980.78/x
3. Step 3: Cross multiply
   2,736.27x = 4,103.37 × 980.78
4. Step 4: Simplify right side
   2,736.27x = 4,024,482.71
5. Step 5: Solve for x
   x = 4,024,482.71/2,736.27
6. Step 6: Final answer
   x = 1,470.79