Finding the Fourth Proportional to 1,718.82, 2,578.32 and 1,025.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,718.82 : 2,578.32 = 1,025.82 : x
2. Step 2: Convert to fraction form
   1,718.82/2,578.32 = 1,025.82/x
3. Step 3: Cross multiply
   1,718.82x = 2,578.32 × 1,025.82
4. Step 4: Simplify right side
   1,718.82x = 2,644,892.22
5. Step 5: Solve for x
   x = 2,644,892.22/1,718.82
6. Step 6: Final answer
   x = 1,538.78