Finding the Fourth Proportional to 2,015.06, 3,022.18 and 628.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015.06 : 3,022.18 = 628.17 : x
2. Step 2: Convert to fraction form
   2,015.06/3,022.18 = 628.17/x
3. Step 3: Cross multiply
   2,015.06x = 3,022.18 × 628.17
4. Step 4: Simplify right side
   2,015.06x = 1,898,429.91
5. Step 5: Solve for x
   x = 1,898,429.91/2,015.06
6. Step 6: Final answer
   x = 942.12