Finding the Fourth Proportional to 2,355.52, 3,532.90 and 711.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,355.52 : 3,532.90 = 711.78 : x
2. Step 2: Convert to fraction form
   2,355.52/3,532.90 = 711.78/x
3. Step 3: Cross multiply
   2,355.52x = 3,532.90 × 711.78
4. Step 4: Simplify right side
   2,355.52x = 2,514,647.56
5. Step 5: Solve for x
   x = 2,514,647.56/2,355.52
6. Step 6: Final answer
   x = 1,067.56