Finding the Fourth Proportional to 1,362.82, 1,880.62 and 773.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,362.82 : 1,880.62 = 773.55 : x
2. Step 2: Convert to fraction form
   1,362.82/1,880.62 = 773.55/x
3. Step 3: Cross multiply
   1,362.82x = 1,880.62 × 773.55
4. Step 4: Simplify right side
   1,362.82x = 1,454,744.20
5. Step 5: Solve for x
   x = 1,454,744.20/1,362.82
6. Step 6: Final answer
   x = 1,067.45