Finding the Fourth Proportional to 2,559, 3,531.42 and 1,455

Step by Step Solution

1. Step 1: Write the proportion equation
   2,559 : 3,531.42 = 1,455 : x
2. Step 2: Convert to fraction form
   2,559/3,531.42 = 1,455/x
3. Step 3: Cross multiply
   2,559x = 3,531.42 × 1,455
4. Step 4: Simplify right side
   2,559x = 5,138,216.10
5. Step 5: Solve for x
   x = 5,138,216.10/2,559
6. Step 6: Final answer
   x = 2,007.90