Finding the Fourth Proportional to 1,363.57, 1,881.24 and 773.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,363.57 : 1,881.24 = 773.77 : x
2. Step 2: Convert to fraction form
   1,363.57/1,881.24 = 773.77/x
3. Step 3: Cross multiply
   1,363.57x = 1,881.24 × 773.77
4. Step 4: Simplify right side
   1,363.57x = 1,455,647.35
5. Step 5: Solve for x
   x = 1,455,647.35/1,363.57
6. Step 6: Final answer
   x = 1,067.52