Finding the Fourth Proportional to 2,275.02, 3,413.61 and 1,120.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,275.02 : 3,413.61 = 1,120.50 : x
2. Step 2: Convert to fraction form
   2,275.02/3,413.61 = 1,120.50/x
3. Step 3: Cross multiply
   2,275.02x = 3,413.61 × 1,120.50
4. Step 4: Simplify right side
   2,275.02x = 3,824,950.01
5. Step 5: Solve for x
   x = 3,824,950.01/2,275.02
6. Step 6: Final answer
   x = 1,681.28