Finding the Fourth Proportional to 3,584.38, 5,376.48 and 987.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,584.38 : 5,376.48 = 987.34 : x
2. Step 2: Convert to fraction form
   3,584.38/5,376.48 = 987.34/x
3. Step 3: Cross multiply
   3,584.38x = 5,376.48 × 987.34
4. Step 4: Simplify right side
   3,584.38x = 5,308,413.76
5. Step 5: Solve for x
   x = 5,308,413.76/3,584.38
6. Step 6: Final answer
   x = 1,480.99