Finding the Fourth Proportional to 2,822.22, 3,896.74 and 2,612.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,822.22 : 3,896.74 = 2,612.30 : x
2. Step 2: Convert to fraction form
   2,822.22/3,896.74 = 2,612.30/x
3. Step 3: Cross multiply
   2,822.22x = 3,896.74 × 2,612.30
4. Step 4: Simplify right side
   2,822.22x = 10,179,437.68
5. Step 5: Solve for x
   x = 10,179,437.68/2,822.22
6. Step 6: Final answer
   x = 3,606.89