Finding the Fourth Proportional to 2,544.89, 3,511.74 and 1,425.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,544.89 : 3,511.74 = 1,425.57 : x
2. Step 2: Convert to fraction form
   2,544.89/3,511.74 = 1,425.57/x
3. Step 3: Cross multiply
   2,544.89x = 3,511.74 × 1,425.57
4. Step 4: Simplify right side
   2,544.89x = 5,006,231.19
5. Step 5: Solve for x
   x = 5,006,231.19/2,544.89
6. Step 6: Final answer
   x = 1,967.17