Finding the Fourth Proportional to 3,820.52, 5,274.77 and 2,406.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,820.52 : 5,274.77 = 2,406.12 : x
2. Step 2: Convert to fraction form
   3,820.52/5,274.77 = 2,406.12/x
3. Step 3: Cross multiply
   3,820.52x = 5,274.77 × 2,406.12
4. Step 4: Simplify right side
   3,820.52x = 12,691,717.56
5. Step 5: Solve for x
   x = 12,691,717.56/3,820.52
6. Step 6: Final answer
   x = 3,321.99