Finding the Fourth Proportional to 695,222.69, 1,042,571.60 and 320,983.25

Step by Step Solution

1. Step 1: Write the proportion equation
   695,222.69 : 1,042,571.60 = 320,983.25 : x
2. Step 2: Convert to fraction form
   695,222.69/1,042,571.60 = 320,983.25/x
3. Step 3: Cross multiply
   695,222.69x = 1,042,571.60 × 320,983.25
4. Step 4: Simplify right side
   695,222.69x = 334,648,018,920.78
5. Step 5: Solve for x
   x = 334,648,018,920.78/695,222.69
6. Step 6: Final answer
   x = 481,353.71