Finding the Fourth Proportional to 2,617.72, 3,923.07 and 1,383.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,617.72 : 3,923.07 = 1,383.82 : x
2. Step 2: Convert to fraction form
   2,617.72/3,923.07 = 1,383.82/x
3. Step 3: Cross multiply
   2,617.72x = 3,923.07 × 1,383.82
4. Step 4: Simplify right side
   2,617.72x = 5,428,822.73
5. Step 5: Solve for x
   x = 5,428,822.73/2,617.72
6. Step 6: Final answer
   x = 2,073.87