Finding the Fourth Proportional to 1,363.03, 1,880.81 and 773.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,363.03 : 1,880.81 = 773.55 : x
2. Step 2: Convert to fraction form
   1,363.03/1,880.81 = 773.55/x
3. Step 3: Cross multiply
   1,363.03x = 1,880.81 × 773.55
4. Step 4: Simplify right side
   1,363.03x = 1,454,896.71
5. Step 5: Solve for x
   x = 1,454,896.71/1,363.03
6. Step 6: Final answer
   x = 1,067.40