Finding the Fourth Proportional to 7,018.06, 10,523.22 and 2,857

Step by Step Solution

1. Step 1: Write the proportion equation
   7,018.06 : 10,523.22 = 2,857 : x
2. Step 2: Convert to fraction form
   7,018.06/10,523.22 = 2,857/x
3. Step 3: Cross multiply
   7,018.06x = 10,523.22 × 2,857
4. Step 4: Simplify right side
   7,018.06x = 30,064,839.54
5. Step 5: Solve for x
   x = 30,064,839.54/7,018.06
6. Step 6: Final answer
   x = 4,283.92