Finding the Fourth Proportional to 2,205.37, 3,306.03 and 818.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,205.37 : 3,306.03 = 818.38 : x
2. Step 2: Convert to fraction form
   2,205.37/3,306.03 = 818.38/x
3. Step 3: Cross multiply
   2,205.37x = 3,306.03 × 818.38
4. Step 4: Simplify right side
   2,205.37x = 2,705,588.83
5. Step 5: Solve for x
   x = 2,705,588.83/2,205.37
6. Step 6: Final answer
   x = 1,226.82