Finding the Fourth Proportional to 3,817.92, 5,718.24 and 3,126.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,817.92 : 5,718.24 = 3,126.72 : x
2. Step 2: Convert to fraction form
   3,817.92/5,718.24 = 3,126.72/x
3. Step 3: Cross multiply
   3,817.92x = 5,718.24 × 3,126.72
4. Step 4: Simplify right side
   3,817.92x = 17,879,335.37
5. Step 5: Solve for x
   x = 17,879,335.37/3,817.92
6. Step 6: Final answer
   x = 4,683.00