Finding the Fourth Proportional to 2,334.55, 3,227.78 and 2,231.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,334.55 : 3,227.78 = 2,231.28 : x
2. Step 2: Convert to fraction form
   2,334.55/3,227.78 = 2,231.28/x
3. Step 3: Cross multiply
   2,334.55x = 3,227.78 × 2,231.28
4. Step 4: Simplify right side
   2,334.55x = 7,202,080.96
5. Step 5: Solve for x
   x = 7,202,080.96/2,334.55
6. Step 6: Final answer
   x = 3,085.00