Finding the Fourth Proportional to 1,796.78, 2,693.35 and 699.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,796.78 : 2,693.35 = 699.64 : x
2. Step 2: Convert to fraction form
   1,796.78/2,693.35 = 699.64/x
3. Step 3: Cross multiply
   1,796.78x = 2,693.35 × 699.64
4. Step 4: Simplify right side
   1,796.78x = 1,884,369.54
5. Step 5: Solve for x
   x = 1,884,369.54/1,796.78
6. Step 6: Final answer
   x = 1,048.75