Finding the Fourth Proportional to 3,830.41, 5,748.45 and 3,581.74

Step by Step Solution

1. Step 1: Write the proportion equation
   3,830.41 : 5,748.45 = 3,581.74 : x
2. Step 2: Convert to fraction form
   3,830.41/5,748.45 = 3,581.74/x
3. Step 3: Cross multiply
   3,830.41x = 5,748.45 × 3,581.74
4. Step 4: Simplify right side
   3,830.41x = 20,589,453.30
5. Step 5: Solve for x
   x = 20,589,453.30/3,830.41
6. Step 6: Final answer
   x = 5,375.26