Finding the Fourth Proportional to 2,229.48, 3,076.71 and 1,234.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,229.48 : 3,076.71 = 1,234.78 : x
2. Step 2: Convert to fraction form
   2,229.48/3,076.71 = 1,234.78/x
3. Step 3: Cross multiply
   2,229.48x = 3,076.71 × 1,234.78
4. Step 4: Simplify right side
   2,229.48x = 3,799,068.45
5. Step 5: Solve for x
   x = 3,799,068.45/2,229.48
6. Step 6: Final answer
   x = 1,704.01