Finding the Fourth Proportional to 1,333.36, 1,839.97 and 773.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.36 : 1,839.97 = 773.78 : x
2. Step 2: Convert to fraction form
   1,333.36/1,839.97 = 773.78/x
3. Step 3: Cross multiply
   1,333.36x = 1,839.97 × 773.78
4. Step 4: Simplify right side
   1,333.36x = 1,423,736.28
5. Step 5: Solve for x
   x = 1,423,736.28/1,333.36
6. Step 6: Final answer
   x = 1,067.78