Finding the Fourth Proportional to 3,784.23, 5,685.57 and 3,574.41

Step by Step Solution

1. Step 1: Write the proportion equation
   3,784.23 : 5,685.57 = 3,574.41 : x
2. Step 2: Convert to fraction form
   3,784.23/5,685.57 = 3,574.41/x
3. Step 3: Cross multiply
   3,784.23x = 5,685.57 × 3,574.41
4. Step 4: Simplify right side
   3,784.23x = 20,322,540.39
5. Step 5: Solve for x
   x = 20,322,540.39/3,784.23
6. Step 6: Final answer
   x = 5,370.33