Finding the Fourth Proportional to 2,229.78, 3,076.86 and 1,235.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,229.78 : 3,076.86 = 1,235.10 : x
2. Step 2: Convert to fraction form
   2,229.78/3,076.86 = 1,235.10/x
3. Step 3: Cross multiply
   2,229.78x = 3,076.86 × 1,235.10
4. Step 4: Simplify right side
   2,229.78x = 3,800,229.79
5. Step 5: Solve for x
   x = 3,800,229.79/2,229.78
6. Step 6: Final answer
   x = 1,704.31