Finding the Fourth Proportional to 4,078.73, 5,629.56 and 2,311.31

Step by Step Solution

1. Step 1: Write the proportion equation
   4,078.73 : 5,629.56 = 2,311.31 : x
2. Step 2: Convert to fraction form
   4,078.73/5,629.56 = 2,311.31/x
3. Step 3: Cross multiply
   4,078.73x = 5,629.56 × 2,311.31
4. Step 4: Simplify right side
   4,078.73x = 13,011,663.73
5. Step 5: Solve for x
   x = 13,011,663.73/4,078.73
6. Step 6: Final answer
   x = 3,190.12