Finding the Fourth Proportional to 1,152,958.72, 1,729,413.96 and 384,511.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152,958.72 : 1,729,413.96 = 384,511.72 : x
2. Step 2: Convert to fraction form
   1,152,958.72/1,729,413.96 = 384,511.72/x
3. Step 3: Cross multiply
   1,152,958.72x = 1,729,413.96 × 384,511.72
4. Step 4: Simplify right side
   1,152,958.72x = 664,979,936,351.61
5. Step 5: Solve for x
   x = 664,979,936,351.61/1,152,958.72
6. Step 6: Final answer
   x = 576,759.54