Finding the Fourth Proportional to 3,369.75, 5,042.28 and 1,983.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,369.75 : 5,042.28 = 1,983.72 : x
2. Step 2: Convert to fraction form
   3,369.75/5,042.28 = 1,983.72/x
3. Step 3: Cross multiply
   3,369.75x = 5,042.28 × 1,983.72
4. Step 4: Simplify right side
   3,369.75x = 10,002,471.68
5. Step 5: Solve for x
   x = 10,002,471.68/3,369.75
6. Step 6: Final answer
   x = 2,968.31