Finding the Fourth Proportional to 3,689.42, 5,086.41 and 3,574.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,689.42 : 5,086.41 = 3,574.76 : x
2. Step 2: Convert to fraction form
   3,689.42/5,086.41 = 3,574.76/x
3. Step 3: Cross multiply
   3,689.42x = 5,086.41 × 3,574.76
4. Step 4: Simplify right side
   3,689.42x = 18,182,669.58
5. Step 5: Solve for x
   x = 18,182,669.58/3,689.42
6. Step 6: Final answer
   x = 4,928.33