Finding the Fourth Proportional to 2,544.21, 3,510.90 and 1,425.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,544.21 : 3,510.90 = 1,425.15 : x
2. Step 2: Convert to fraction form
   2,544.21/3,510.90 = 1,425.15/x
3. Step 3: Cross multiply
   2,544.21x = 3,510.90 × 1,425.15
4. Step 4: Simplify right side
   2,544.21x = 5,003,559.14
5. Step 5: Solve for x
   x = 5,003,559.14/2,544.21
6. Step 6: Final answer
   x = 1,966.65