Finding the Fourth Proportional to 3,820.32, 5,271.12 and 2,422.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,820.32 : 5,271.12 = 2,422.56 : x
2. Step 2: Convert to fraction form
   3,820.32/5,271.12 = 2,422.56/x
3. Step 3: Cross multiply
   3,820.32x = 5,271.12 × 2,422.56
4. Step 4: Simplify right side
   3,820.32x = 12,769,604.47
5. Step 5: Solve for x
   x = 12,769,604.47/3,820.32
6. Step 6: Final answer
   x = 3,342.55