Finding the Fourth Proportional to 3,861.27, 5,792.31 and 1,264.41

Step by Step Solution

1. Step 1: Write the proportion equation
   3,861.27 : 5,792.31 = 1,264.41 : x
2. Step 2: Convert to fraction form
   3,861.27/5,792.31 = 1,264.41/x
3. Step 3: Cross multiply
   3,861.27x = 5,792.31 × 1,264.41
4. Step 4: Simplify right side
   3,861.27x = 7,323,854.69
5. Step 5: Solve for x
   x = 7,323,854.69/3,861.27
6. Step 6: Final answer
   x = 1,896.75