Finding the Fourth Proportional to 3,979.72, 5,971.74 and 3,834.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,979.72 : 5,971.74 = 3,834.28 : x
2. Step 2: Convert to fraction form
   3,979.72/5,971.74 = 3,834.28/x
3. Step 3: Cross multiply
   3,979.72x = 5,971.74 × 3,834.28
4. Step 4: Simplify right side
   3,979.72x = 22,897,323.25
5. Step 5: Solve for x
   x = 22,897,323.25/3,979.72
6. Step 6: Final answer
   x = 5,753.50