Finding the Fourth Proportional to 2,544.37, 3,511.20 and 1,425.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,544.37 : 3,511.20 = 1,425.30 : x
2. Step 2: Convert to fraction form
   2,544.37/3,511.20 = 1,425.30/x
3. Step 3: Cross multiply
   2,544.37x = 3,511.20 × 1,425.30
4. Step 4: Simplify right side
   2,544.37x = 5,004,513.36
5. Step 5: Solve for x
   x = 5,004,513.36/2,544.37
6. Step 6: Final answer
   x = 1,966.90