Finding the Fourth Proportional to 4,061.36, 5,590.22 and 2,880.38

Step by Step Solution

1. Step 1: Write the proportion equation
   4,061.36 : 5,590.22 = 2,880.38 : x
2. Step 2: Convert to fraction form
   4,061.36/5,590.22 = 2,880.38/x
3. Step 3: Cross multiply
   4,061.36x = 5,590.22 × 2,880.38
4. Step 4: Simplify right side
   4,061.36x = 16,101,957.88
5. Step 5: Solve for x
   x = 16,101,957.88/4,061.36
6. Step 6: Final answer
   x = 3,964.67