Finding the Fourth Proportional to 3,824.62, 5,707.87 and 3,726.20

Step by Step Solution

1. Step 1: Write the proportion equation
   3,824.62 : 5,707.87 = 3,726.20 : x
2. Step 2: Convert to fraction form
   3,824.62/5,707.87 = 3,726.20/x
3. Step 3: Cross multiply
   3,824.62x = 5,707.87 × 3,726.20
4. Step 4: Simplify right side
   3,824.62x = 21,268,670.15
5. Step 5: Solve for x
   x = 21,268,670.15/3,824.62
6. Step 6: Final answer
   x = 5,560.99