Finding the Fourth Proportional to 1,018.33, 1,524.04 and 628.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018.33 : 1,524.04 = 628.59 : x
2. Step 2: Convert to fraction form
   1,018.33/1,524.04 = 628.59/x
3. Step 3: Cross multiply
   1,018.33x = 1,524.04 × 628.59
4. Step 4: Simplify right side
   1,018.33x = 957,996.30
5. Step 5: Solve for x
   x = 957,996.30/1,018.33
6. Step 6: Final answer
   x = 940.75