Finding the Fourth Proportional to 2,736.78, 4,104.72 and 981.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,736.78 : 4,104.72 = 981.42 : x
2. Step 2: Convert to fraction form
   2,736.78/4,104.72 = 981.42/x
3. Step 3: Cross multiply
   2,736.78x = 4,104.72 × 981.42
4. Step 4: Simplify right side
   2,736.78x = 4,028,454.30
5. Step 5: Solve for x
   x = 4,028,454.30/2,736.78
6. Step 6: Final answer
   x = 1,471.97