Finding the Fourth Proportional to 3,895.72, 5,372.74 and 3,470.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,895.72 : 5,372.74 = 3,470.92 : x
2. Step 2: Convert to fraction form
   3,895.72/5,372.74 = 3,470.92/x
3. Step 3: Cross multiply
   3,895.72x = 5,372.74 × 3,470.92
4. Step 4: Simplify right side
   3,895.72x = 18,648,350.72
5. Step 5: Solve for x
   x = 18,648,350.72/3,895.72
6. Step 6: Final answer
   x = 4,786.88