Finding the Fourth Proportional to 830,264.67, 1,245,870.59 and 324,866.79

Step by Step Solution

1. Step 1: Write the proportion equation
   830,264.67 : 1,245,870.59 = 324,866.79 : x
2. Step 2: Convert to fraction form
   830,264.67/1,245,870.59 = 324,866.79/x
3. Step 3: Cross multiply
   830,264.67x = 1,245,870.59 × 324,866.79
4. Step 4: Simplify right side
   830,264.67x = 404,741,977,704.37
5. Step 5: Solve for x
   x = 404,741,977,704.37/830,264.67
6. Step 6: Final answer
   x = 487,485.49