Finding the Fourth Proportional to 2,412.52, 3,615.96 and 1,025.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,412.52 : 3,615.96 = 1,025.40 : x
2. Step 2: Convert to fraction form
   2,412.52/3,615.96 = 1,025.40/x
3. Step 3: Cross multiply
   2,412.52x = 3,615.96 × 1,025.40
4. Step 4: Simplify right side
   2,412.52x = 3,707,805.38
5. Step 5: Solve for x
   x = 3,707,805.38/2,412.52
6. Step 6: Final answer
   x = 1,536.90