Finding the Fourth Proportional to 2,271.33, 3,147.05 and 2,222.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,271.33 : 3,147.05 = 2,222.12 : x
2. Step 2: Convert to fraction form
   2,271.33/3,147.05 = 2,222.12/x
3. Step 3: Cross multiply
   2,271.33x = 3,147.05 × 2,222.12
4. Step 4: Simplify right side
   2,271.33x = 6,993,095.90
5. Step 5: Solve for x
   x = 6,993,095.90/2,271.33
6. Step 6: Final answer
   x = 3,078.86