Finding the Fourth Proportional to 3,665.41, 5,058.25 and 1,986.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.41 : 5,058.25 = 1,986.86 : x
2. Step 2: Convert to fraction form
   3,665.41/5,058.25 = 1,986.86/x
3. Step 3: Cross multiply
   3,665.41x = 5,058.25 × 1,986.86
4. Step 4: Simplify right side
   3,665.41x = 10,049,999.37
5. Step 5: Solve for x
   x = 10,049,999.37/3,665.41
6. Step 6: Final answer
   x = 2,741.85