Finding the Fourth Proportional to 2,196.38, 3,027.31 and 1,665.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.38 : 3,027.31 = 1,665.09 : x
2. Step 2: Convert to fraction form
   2,196.38/3,027.31 = 1,665.09/x
3. Step 3: Cross multiply
   2,196.38x = 3,027.31 × 1,665.09
4. Step 4: Simplify right side
   2,196.38x = 5,040,739.45
5. Step 5: Solve for x
   x = 5,040,739.45/2,196.38
6. Step 6: Final answer
   x = 2,295.03