Finding the Fourth Proportional to 3,665.16, 5,058.09 and 2,071.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.16 : 5,058.09 = 2,071.69 : x
2. Step 2: Convert to fraction form
   3,665.16/5,058.09 = 2,071.69/x
3. Step 3: Cross multiply
   3,665.16x = 5,058.09 × 2,071.69
4. Step 4: Simplify right side
   3,665.16x = 10,478,794.47
5. Step 5: Solve for x
   x = 10,478,794.47/3,665.16
6. Step 6: Final answer
   x = 2,859.03