Finding the Fourth Proportional to 1,400.67, 1,931.94 and 876.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,400.67 : 1,931.94 = 876.33 : x
2. Step 2: Convert to fraction form
   1,400.67/1,931.94 = 876.33/x
3. Step 3: Cross multiply
   1,400.67x = 1,931.94 × 876.33
4. Step 4: Simplify right side
   1,400.67x = 1,693,016.98
5. Step 5: Solve for x
   x = 1,693,016.98/1,400.67
6. Step 6: Final answer
   x = 1,208.72