Finding the Fourth Proportional to 2,443.26, 3,664.61 and 711.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.26 : 3,664.61 = 711.89 : x
2. Step 2: Convert to fraction form
   2,443.26/3,664.61 = 711.89/x
3. Step 3: Cross multiply
   2,443.26x = 3,664.61 × 711.89
4. Step 4: Simplify right side
   2,443.26x = 2,608,799.21
5. Step 5: Solve for x
   x = 2,608,799.21/2,443.26
6. Step 6: Final answer
   x = 1,067.75