Finding the Fourth Proportional to 2,379.25, 3,283.37 and 1,331.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379.25 : 3,283.37 = 1,331.31 : x
2. Step 2: Convert to fraction form
   2,379.25/3,283.37 = 1,331.31/x
3. Step 3: Cross multiply
   2,379.25x = 3,283.37 × 1,331.31
4. Step 4: Simplify right side
   2,379.25x = 4,371,183.31
5. Step 5: Solve for x
   x = 4,371,183.31/2,379.25
6. Step 6: Final answer
   x = 1,837.21