Finding the Fourth Proportional to 2,399.31, 3,595.44 and 1,165.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399.31 : 3,595.44 = 1,165.31 : x
2. Step 2: Convert to fraction form
   2,399.31/3,595.44 = 1,165.31/x
3. Step 3: Cross multiply
   2,399.31x = 3,595.44 × 1,165.31
4. Step 4: Simplify right side
   2,399.31x = 4,189,796.36
5. Step 5: Solve for x
   x = 4,189,796.36/2,399.31
6. Step 6: Final answer
   x = 1,746.25