Finding the Fourth Proportional to 1,362.83, 1,880.82 and 773.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,362.83 : 1,880.82 = 773.55 : x
2. Step 2: Convert to fraction form
   1,362.83/1,880.82 = 773.55/x
3. Step 3: Cross multiply
   1,362.83x = 1,880.82 × 773.55
4. Step 4: Simplify right side
   1,362.83x = 1,454,908.31
5. Step 5: Solve for x
   x = 1,454,908.31/1,362.83
6. Step 6: Final answer
   x = 1,067.57