Finding the Fourth Proportional to 1,363.22, 1,881.24 and 773.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,363.22 : 1,881.24 = 773.73 : x
2. Step 2: Convert to fraction form
   1,363.22/1,881.24 = 773.73/x
3. Step 3: Cross multiply
   1,363.22x = 1,881.24 × 773.73
4. Step 4: Simplify right side
   1,363.22x = 1,455,571.83
5. Step 5: Solve for x
   x = 1,455,571.83/1,363.22
6. Step 6: Final answer
   x = 1,067.75