Finding the Fourth Proportional to 1,363.25, 1,881.33 and 773.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,363.25 : 1,881.33 = 773.81 : x
2. Step 2: Convert to fraction form
   1,363.25/1,881.33 = 773.81/x
3. Step 3: Cross multiply
   1,363.25x = 1,881.33 × 773.81
4. Step 4: Simplify right side
   1,363.25x = 1,455,782.56
5. Step 5: Solve for x
   x = 1,455,782.56/1,363.25
6. Step 6: Final answer
   x = 1,067.88