Finding the Fourth Proportional to 3,959.37, 5,940.12 and 1,327.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,959.37 : 5,940.12 = 1,327.31 : x
2. Step 2: Convert to fraction form
   3,959.37/5,940.12 = 1,327.31/x
3. Step 3: Cross multiply
   3,959.37x = 5,940.12 × 1,327.31
4. Step 4: Simplify right side
   3,959.37x = 7,884,350.98
5. Step 5: Solve for x
   x = 7,884,350.98/3,959.37
6. Step 6: Final answer
   x = 1,991.31