Finding the Fourth Proportional to 1,227.94, 1,693.83 and 785.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,227.94 : 1,693.83 = 785.68 : x
2. Step 2: Convert to fraction form
   1,227.94/1,693.83 = 785.68/x
3. Step 3: Cross multiply
   1,227.94x = 1,693.83 × 785.68
4. Step 4: Simplify right side
   1,227.94x = 1,330,799.89
5. Step 5: Solve for x
   x = 1,330,799.89/1,227.94
6. Step 6: Final answer
   x = 1,083.77