Finding the Fourth Proportional to 2,791.05, 4,186.62 and 843.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,791.05 : 4,186.62 = 843.34 : x
2. Step 2: Convert to fraction form
   2,791.05/4,186.62 = 843.34/x
3. Step 3: Cross multiply
   2,791.05x = 4,186.62 × 843.34
4. Step 4: Simplify right side
   2,791.05x = 3,530,739.89
5. Step 5: Solve for x
   x = 3,530,739.89/2,791.05
6. Step 6: Final answer
   x = 1,265.02