Finding the Fourth Proportional to 2,229.38, 3,076.89 and 1,272.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,229.38 : 3,076.89 = 1,272.29 : x
2. Step 2: Convert to fraction form
   2,229.38/3,076.89 = 1,272.29/x
3. Step 3: Cross multiply
   2,229.38x = 3,076.89 × 1,272.29
4. Step 4: Simplify right side
   2,229.38x = 3,914,696.38
5. Step 5: Solve for x
   x = 3,914,696.38/2,229.38
6. Step 6: Final answer
   x = 1,755.96