Finding the Fourth Proportional to 957,535.83, 1,321,379.73 and 521,949.42

Step by Step Solution

1. Step 1: Write the proportion equation
   957,535.83 : 1,321,379.73 = 521,949.42 : x
2. Step 2: Convert to fraction form
   957,535.83/1,321,379.73 = 521,949.42/x
3. Step 3: Cross multiply
   957,535.83x = 1,321,379.73 × 521,949.42
4. Step 4: Simplify right side
   957,535.83x = 689,693,383,673.26
5. Step 5: Solve for x
   x = 689,693,383,673.26/957,535.83
6. Step 6: Final answer
   x = 720,279.45