Finding the Fourth Proportional to 3,947.14, 5,470.57 and 3,873.33

Step by Step Solution

1. Step 1: Write the proportion equation
   3,947.14 : 5,470.57 = 3,873.33 : x
2. Step 2: Convert to fraction form
   3,947.14/5,470.57 = 3,873.33/x
3. Step 3: Cross multiply
   3,947.14x = 5,470.57 × 3,873.33
4. Step 4: Simplify right side
   3,947.14x = 21,189,322.90
5. Step 5: Solve for x
   x = 21,189,322.90/3,947.14
6. Step 6: Final answer
   x = 5,368.27