Finding the Fourth Proportional to 1,363.38, 1,881.66 and 773.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,363.38 : 1,881.66 = 773.79 : x
2. Step 2: Convert to fraction form
   1,363.38/1,881.66 = 773.79/x
3. Step 3: Cross multiply
   1,363.38x = 1,881.66 × 773.79
4. Step 4: Simplify right side
   1,363.38x = 1,456,009.69
5. Step 5: Solve for x
   x = 1,456,009.69/1,363.38
6. Step 6: Final answer
   x = 1,067.94