Finding the Fourth Proportional to 3,580.24, 5,369.89 and 1,387.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,580.24 : 5,369.89 = 1,387.47 : x
2. Step 2: Convert to fraction form
   3,580.24/5,369.89 = 1,387.47/x
3. Step 3: Cross multiply
   3,580.24x = 5,369.89 × 1,387.47
4. Step 4: Simplify right side
   3,580.24x = 7,450,561.28
5. Step 5: Solve for x
   x = 7,450,561.28/3,580.24
6. Step 6: Final answer
   x = 2,081.02