Finding the Fourth Proportional to 2,194.14, 3,287.25 and 1,205.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,194.14 : 3,287.25 = 1,205.89 : x
2. Step 2: Convert to fraction form
   2,194.14/3,287.25 = 1,205.89/x
3. Step 3: Cross multiply
   2,194.14x = 3,287.25 × 1,205.89
4. Step 4: Simplify right side
   2,194.14x = 3,964,061.90
5. Step 5: Solve for x
   x = 3,964,061.90/2,194.14
6. Step 6: Final answer
   x = 1,806.66