Finding the Fourth Proportional to 1,333.78, 1,840.12 and 773.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.78 : 1,840.12 = 773.93 : x
2. Step 2: Convert to fraction form
   1,333.78/1,840.12 = 773.93/x
3. Step 3: Cross multiply
   1,333.78x = 1,840.12 × 773.93
4. Step 4: Simplify right side
   1,333.78x = 1,424,124.07
5. Step 5: Solve for x
   x = 1,424,124.07/1,333.78
6. Step 6: Final answer
   x = 1,067.74