Finding the Fourth Proportional to 3,665.07, 5,058.53 and 2,486.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.07 : 5,058.53 = 2,486.52 : x
2. Step 2: Convert to fraction form
   3,665.07/5,058.53 = 2,486.52/x
3. Step 3: Cross multiply
   3,665.07x = 5,058.53 × 2,486.52
4. Step 4: Simplify right side
   3,665.07x = 12,578,136.02
5. Step 5: Solve for x
   x = 12,578,136.02/3,665.07
6. Step 6: Final answer
   x = 3,431.90