Finding the Fourth Proportional to 2,645.02, 3,969.33 and 1,413.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645.02 : 3,969.33 = 1,413.01 : x
2. Step 2: Convert to fraction form
   2,645.02/3,969.33 = 1,413.01/x
3. Step 3: Cross multiply
   2,645.02x = 3,969.33 × 1,413.01
4. Step 4: Simplify right side
   2,645.02x = 5,608,702.98
5. Step 5: Solve for x
   x = 5,608,702.98/2,645.02
6. Step 6: Final answer
   x = 2,120.48