Finding the Fourth Proportional to 7,231.56, 10,851.72 and 2,848.20

Step by Step Solution

1. Step 1: Write the proportion equation
   7,231.56 : 10,851.72 = 2,848.20 : x
2. Step 2: Convert to fraction form
   7,231.56/10,851.72 = 2,848.20/x
3. Step 3: Cross multiply
   7,231.56x = 10,851.72 × 2,848.20
4. Step 4: Simplify right side
   7,231.56x = 30,907,868.90
5. Step 5: Solve for x
   x = 30,907,868.90/7,231.56
6. Step 6: Final answer
   x = 4,274.03