Finding the Fourth Proportional to 2,015.76, 3,022.82 and 628.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015.76 : 3,022.82 = 628.63 : x
2. Step 2: Convert to fraction form
   2,015.76/3,022.82 = 628.63/x
3. Step 3: Cross multiply
   2,015.76x = 3,022.82 × 628.63
4. Step 4: Simplify right side
   2,015.76x = 1,900,235.34
5. Step 5: Solve for x
   x = 1,900,235.34/2,015.76
6. Step 6: Final answer
   x = 942.69