Finding the Fourth Proportional to 2,738.48, 4,108.05 and 983.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,738.48 : 4,108.05 = 983.21 : x
2. Step 2: Convert to fraction form
   2,738.48/4,108.05 = 983.21/x
3. Step 3: Cross multiply
   2,738.48x = 4,108.05 × 983.21
4. Step 4: Simplify right side
   2,738.48x = 4,039,055.30
5. Step 5: Solve for x
   x = 4,039,055.30/2,738.48
6. Step 6: Final answer
   x = 1,474.93