Finding the Fourth Proportional to 2,504.72, 3,455.42 and 1,442.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,504.72 : 3,455.42 = 1,442.22 : x
2. Step 2: Convert to fraction form
   2,504.72/3,455.42 = 1,442.22/x
3. Step 3: Cross multiply
   2,504.72x = 3,455.42 × 1,442.22
4. Step 4: Simplify right side
   2,504.72x = 4,983,468.62
5. Step 5: Solve for x
   x = 4,983,468.62/2,504.72
6. Step 6: Final answer
   x = 1,989.63