Finding the Fourth Proportional to 2,544.35, 3,511.30 and 1,425.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,544.35 : 3,511.30 = 1,425.25 : x
2. Step 2: Convert to fraction form
   2,544.35/3,511.30 = 1,425.25/x
3. Step 3: Cross multiply
   2,544.35x = 3,511.30 × 1,425.25
4. Step 4: Simplify right side
   2,544.35x = 5,004,490.80
5. Step 5: Solve for x
   x = 5,004,490.80/2,544.35
6. Step 6: Final answer
   x = 1,966.90