Finding the Fourth Proportional to 5,227.94, 7,214.56 and 2,870.23

Step by Step Solution

1. Step 1: Write the proportion equation
   5,227.94 : 7,214.56 = 2,870.23 : x
2. Step 2: Convert to fraction form
   5,227.94/7,214.56 = 2,870.23/x
3. Step 3: Cross multiply
   5,227.94x = 7,214.56 × 2,870.23
4. Step 4: Simplify right side
   5,227.94x = 20,707,446.55
5. Step 5: Solve for x
   x = 20,707,446.55/5,227.94
6. Step 6: Final answer
   x = 3,960.92