Finding the Fourth Proportional to 2,015.27, 3,023.18 and 628.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015.27 : 3,023.18 = 628.71 : x
2. Step 2: Convert to fraction form
   2,015.27/3,023.18 = 628.71/x
3. Step 3: Cross multiply
   2,015.27x = 3,023.18 × 628.71
4. Step 4: Simplify right side
   2,015.27x = 1,900,703.50
5. Step 5: Solve for x
   x = 1,900,703.50/2,015.27
6. Step 6: Final answer
   x = 943.15