Finding the Fourth Proportional to 2,567.89, 3,850.82 and 1,398.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,567.89 : 3,850.82 = 1,398.86 : x
2. Step 2: Convert to fraction form
   2,567.89/3,850.82 = 1,398.86/x
3. Step 3: Cross multiply
   2,567.89x = 3,850.82 × 1,398.86
4. Step 4: Simplify right side
   2,567.89x = 5,386,758.07
5. Step 5: Solve for x
   x = 5,386,758.07/2,567.89
6. Step 6: Final answer
   x = 2,097.74