Finding the Fourth Proportional to 2,205.42, 3,306.56 and 1,997.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,205.42 : 3,306.56 = 1,997.82 : x
2. Step 2: Convert to fraction form
   2,205.42/3,306.56 = 1,997.82/x
3. Step 3: Cross multiply
   2,205.42x = 3,306.56 × 1,997.82
4. Step 4: Simplify right side
   2,205.42x = 6,605,916.69
5. Step 5: Solve for x
   x = 6,605,916.69/2,205.42
6. Step 6: Final answer
   x = 2,995.31