Finding the Fourth Proportional to 2,222.72, 3,333.93 and 1,355.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.72 : 3,333.93 = 1,355.21 : x
2. Step 2: Convert to fraction form
   2,222.72/3,333.93 = 1,355.21/x
3. Step 3: Cross multiply
   2,222.72x = 3,333.93 × 1,355.21
4. Step 4: Simplify right side
   2,222.72x = 4,518,175.28
5. Step 5: Solve for x
   x = 4,518,175.28/2,222.72
6. Step 6: Final answer
   x = 2,032.72