Finding the Fourth Proportional to 2,565.17, 3,846.37 and 1,329.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,565.17 : 3,846.37 = 1,329.51 : x
2. Step 2: Convert to fraction form
   2,565.17/3,846.37 = 1,329.51/x
3. Step 3: Cross multiply
   2,565.17x = 3,846.37 × 1,329.51
4. Step 4: Simplify right side
   2,565.17x = 5,113,787.38
5. Step 5: Solve for x
   x = 5,113,787.38/2,565.17
6. Step 6: Final answer
   x = 1,993.55