Finding the Fourth Proportional to 830,371.69, 1,245,945.12 and 324,801.69

Step by Step Solution

1. Step 1: Write the proportion equation
   830,371.69 : 1,245,945.12 = 324,801.69 : x
2. Step 2: Convert to fraction form
   830,371.69/1,245,945.12 = 324,801.69/x
3. Step 3: Cross multiply
   830,371.69x = 1,245,945.12 × 324,801.69
4. Step 4: Simplify right side
   830,371.69x = 404,685,080,623.25
5. Step 5: Solve for x
   x = 404,685,080,623.25/830,371.69
6. Step 6: Final answer
   x = 487,354.14