Finding the Fourth Proportional to 2,413.31, 3,620.50 and 953.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,413.31 : 3,620.50 = 953.96 : x
2. Step 2: Convert to fraction form
   2,413.31/3,620.50 = 953.96/x
3. Step 3: Cross multiply
   2,413.31x = 3,620.50 × 953.96
4. Step 4: Simplify right side
   2,413.31x = 3,453,791.69
5. Step 5: Solve for x
   x = 3,453,791.69/2,413.31
6. Step 6: Final answer
   x = 1,431.15