Finding the Fourth Proportional to 2,604.78, 3,594.57 and 1,425.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,604.78 : 3,594.57 = 1,425.78 : x
2. Step 2: Convert to fraction form
   2,604.78/3,594.57 = 1,425.78/x
3. Step 3: Cross multiply
   2,604.78x = 3,594.57 × 1,425.78
4. Step 4: Simplify right side
   2,604.78x = 5,125,066.01
5. Step 5: Solve for x
   x = 5,125,066.01/2,604.78
6. Step 6: Final answer
   x = 1,967.56