Finding the Fourth Proportional to 3,611.84, 5,413.42 and 1,300.64

Step by Step Solution

1. Step 1: Write the proportion equation
   3,611.84 : 5,413.42 = 1,300.64 : x
2. Step 2: Convert to fraction form
   3,611.84/5,413.42 = 1,300.64/x
3. Step 3: Cross multiply
   3,611.84x = 5,413.42 × 1,300.64
4. Step 4: Simplify right side
   3,611.84x = 7,040,910.59
5. Step 5: Solve for x
   x = 7,040,910.59/3,611.84
6. Step 6: Final answer
   x = 1,949.40