Finding the Fourth Proportional to 3,151.98, 4,727.94 and 843.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,151.98 : 4,727.94 = 843.48 : x
2. Step 2: Convert to fraction form
   3,151.98/4,727.94 = 843.48/x
3. Step 3: Cross multiply
   3,151.98x = 4,727.94 × 843.48
4. Step 4: Simplify right side
   3,151.98x = 3,987,922.83
5. Step 5: Solve for x
   x = 3,987,922.83/3,151.98
6. Step 6: Final answer
   x = 1,265.21