Finding the Fourth Proportional to 2,306.02, 3,456.86 and 1,072.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,306.02 : 3,456.86 = 1,072.78 : x
2. Step 2: Convert to fraction form
   2,306.02/3,456.86 = 1,072.78/x
3. Step 3: Cross multiply
   2,306.02x = 3,456.86 × 1,072.78
4. Step 4: Simplify right side
   2,306.02x = 3,708,450.27
5. Step 5: Solve for x
   x = 3,708,450.27/2,306.02
6. Step 6: Final answer
   x = 1,608.16