Finding the Fourth Proportional to 3,820.48, 5,717.62 and 2,651.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,820.48 : 5,717.62 = 2,651.81 : x
2. Step 2: Convert to fraction form
   3,820.48/5,717.62 = 2,651.81/x
3. Step 3: Cross multiply
   3,820.48x = 5,717.62 × 2,651.81
4. Step 4: Simplify right side
   3,820.48x = 15,162,041.89
5. Step 5: Solve for x
   x = 15,162,041.89/3,820.48
6. Step 6: Final answer
   x = 3,968.62