Finding the Fourth Proportional to 3,147.94, 4,721.77 and 1,067.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,147.94 : 4,721.77 = 1,067.86 : x
2. Step 2: Convert to fraction form
   3,147.94/4,721.77 = 1,067.86/x
3. Step 3: Cross multiply
   3,147.94x = 4,721.77 × 1,067.86
4. Step 4: Simplify right side
   3,147.94x = 5,042,189.31
5. Step 5: Solve for x
   x = 5,042,189.31/3,147.94
6. Step 6: Final answer
   x = 1,601.74