Finding the Fourth Proportional to 2,222.80, 3,068.04 and 1,635.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.80 : 3,068.04 = 1,635.28 : x
2. Step 2: Convert to fraction form
   2,222.80/3,068.04 = 1,635.28/x
3. Step 3: Cross multiply
   2,222.80x = 3,068.04 × 1,635.28
4. Step 4: Simplify right side
   2,222.80x = 5,017,104.45
5. Step 5: Solve for x
   x = 5,017,104.45/2,222.80
6. Step 6: Final answer
   x = 2,257.11