Finding the Fourth Proportional to 1,403.30, 1,936.54 and 773.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,403.30 : 1,936.54 = 773.83 : x
2. Step 2: Convert to fraction form
   1,403.30/1,936.54 = 773.83/x
3. Step 3: Cross multiply
   1,403.30x = 1,936.54 × 773.83
4. Step 4: Simplify right side
   1,403.30x = 1,498,552.75
5. Step 5: Solve for x
   x = 1,498,552.75/1,403.30
6. Step 6: Final answer
   x = 1,067.88