Finding the Fourth Proportional to 2,222.16, 3,323.52 and 1,553.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.16 : 3,323.52 = 1,553.12 : x
2. Step 2: Convert to fraction form
   2,222.16/3,323.52 = 1,553.12/x
3. Step 3: Cross multiply
   2,222.16x = 3,323.52 × 1,553.12
4. Step 4: Simplify right side
   2,222.16x = 5,161,825.38
5. Step 5: Solve for x
   x = 5,161,825.38/2,222.16
6. Step 6: Final answer
   x = 2,322.89