Finding the Fourth Proportional to 1,018.65, 1,400.33 and 876.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018.65 : 1,400.33 = 876.33 : x
2. Step 2: Convert to fraction form
   1,018.65/1,400.33 = 876.33/x
3. Step 3: Cross multiply
   1,018.65x = 1,400.33 × 876.33
4. Step 4: Simplify right side
   1,018.65x = 1,227,153.48
5. Step 5: Solve for x
   x = 1,227,153.48/1,018.65
6. Step 6: Final answer
   x = 1,204.69