Finding the Fourth Proportional to 2,287.94, 3,425.72 and 1,243.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287.94 : 3,425.72 = 1,243.04 : x
2. Step 2: Convert to fraction form
   2,287.94/3,425.72 = 1,243.04/x
3. Step 3: Cross multiply
   2,287.94x = 3,425.72 × 1,243.04
4. Step 4: Simplify right side
   2,287.94x = 4,258,306.99
5. Step 5: Solve for x
   x = 4,258,306.99/2,287.94
6. Step 6: Final answer
   x = 1,861.20