Finding the Fourth Proportional to 2,057.27, 3,083.86 and 1,327.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,057.27 : 3,083.86 = 1,327.36 : x
2. Step 2: Convert to fraction form
   2,057.27/3,083.86 = 1,327.36/x
3. Step 3: Cross multiply
   2,057.27x = 3,083.86 × 1,327.36
4. Step 4: Simplify right side
   2,057.27x = 4,093,392.95
5. Step 5: Solve for x
   x = 4,093,392.95/2,057.27
6. Step 6: Final answer
   x = 1,989.72