Finding the Fourth Proportional to 2,544.31, 3,511.05 and 1,425.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,544.31 : 3,511.05 = 1,425.22 : x
2. Step 2: Convert to fraction form
   2,544.31/3,511.05 = 1,425.22/x
3. Step 3: Cross multiply
   2,544.31x = 3,511.05 × 1,425.22
4. Step 4: Simplify right side
   2,544.31x = 5,004,018.68
5. Step 5: Solve for x
   x = 5,004,018.68/2,544.31
6. Step 6: Final answer
   x = 1,966.75