Finding the Fourth Proportional to 3,830.16, 5,747.52 and 3,587.20

Step by Step Solution

1. Step 1: Write the proportion equation
   3,830.16 : 5,747.52 = 3,587.20 : x
2. Step 2: Convert to fraction form
   3,830.16/5,747.52 = 3,587.20/x
3. Step 3: Cross multiply
   3,830.16x = 5,747.52 × 3,587.20
4. Step 4: Simplify right side
   3,830.16x = 20,617,503.74
5. Step 5: Solve for x
   x = 20,617,503.74/3,830.16
6. Step 6: Final answer
   x = 5,382.94