Finding the Fourth Proportional to 2,229.50, 3,076.34 and 1,234.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,229.50 : 3,076.34 = 1,234.78 : x
2. Step 2: Convert to fraction form
   2,229.50/3,076.34 = 1,234.78/x
3. Step 3: Cross multiply
   2,229.50x = 3,076.34 × 1,234.78
4. Step 4: Simplify right side
   2,229.50x = 3,798,589.24
5. Step 5: Solve for x
   x = 3,798,589.24/2,229.50
6. Step 6: Final answer
   x = 1,703.78