Finding the Fourth Proportional to 2,738.27, 4,107.28 and 983.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,738.27 : 4,107.28 = 983.31 : x
2. Step 2: Convert to fraction form
   2,738.27/4,107.28 = 983.31/x
3. Step 3: Cross multiply
   2,738.27x = 4,107.28 × 983.31
4. Step 4: Simplify right side
   2,738.27x = 4,038,727.04
5. Step 5: Solve for x
   x = 4,038,727.04/2,738.27
6. Step 6: Final answer
   x = 1,474.92