Finding the Fourth Proportional to 3,883.98, 5,822.04 and 2,215.68

Step by Step Solution

1. Step 1: Write the proportion equation
   3,883.98 : 5,822.04 = 2,215.68 : x
2. Step 2: Convert to fraction form
   3,883.98/5,822.04 = 2,215.68/x
3. Step 3: Cross multiply
   3,883.98x = 5,822.04 × 2,215.68
4. Step 4: Simplify right side
   3,883.98x = 12,899,777.59
5. Step 5: Solve for x
   x = 12,899,777.59/3,883.98
6. Step 6: Final answer
   x = 3,321.28