Finding the Fourth Proportional to 3,144.25, 4,717.05 and 1,064.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,144.25 : 4,717.05 = 1,064.31 : x
2. Step 2: Convert to fraction form
   3,144.25/4,717.05 = 1,064.31/x
3. Step 3: Cross multiply
   3,144.25x = 4,717.05 × 1,064.31
4. Step 4: Simplify right side
   3,144.25x = 5,020,379.90
5. Step 5: Solve for x
   x = 5,020,379.90/3,144.25
6. Step 6: Final answer
   x = 1,596.69