Finding the Fourth Proportional to 1,363.23, 1,881.27 and 773.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,363.23 : 1,881.27 = 773.78 : x
2. Step 2: Convert to fraction form
   1,363.23/1,881.27 = 773.78/x
3. Step 3: Cross multiply
   1,363.23x = 1,881.27 × 773.78
4. Step 4: Simplify right side
   1,363.23x = 1,455,680.60
5. Step 5: Solve for x
   x = 1,455,680.60/1,363.23
6. Step 6: Final answer
   x = 1,067.82