Finding the Fourth Proportional to 2,205.91, 3,304.57 and 1,229.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,205.91 : 3,304.57 = 1,229.07 : x
2. Step 2: Convert to fraction form
   2,205.91/3,304.57 = 1,229.07/x
3. Step 3: Cross multiply
   2,205.91x = 3,304.57 × 1,229.07
4. Step 4: Simplify right side
   2,205.91x = 4,061,541.70
5. Step 5: Solve for x
   x = 4,061,541.70/2,205.91
6. Step 6: Final answer
   x = 1,841.21