Finding the Fourth Proportional to 3,162.92, 4,743.78 and 1,054.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,162.92 : 4,743.78 = 1,054.57 : x
2. Step 2: Convert to fraction form
   3,162.92/4,743.78 = 1,054.57/x
3. Step 3: Cross multiply
   3,162.92x = 4,743.78 × 1,054.57
4. Step 4: Simplify right side
   3,162.92x = 5,002,648.07
5. Step 5: Solve for x
   x = 5,002,648.07/3,162.92
6. Step 6: Final answer
   x = 1,581.65