Finding the Fourth Proportional to 3,965.02, 5,973.91 and 3,590.02

Step by Step Solution

1. Step 1: Write the proportion equation
   3,965.02 : 5,973.91 = 3,590.02 : x
2. Step 2: Convert to fraction form
   3,965.02/5,973.91 = 3,590.02/x
3. Step 3: Cross multiply
   3,965.02x = 5,973.91 × 3,590.02
4. Step 4: Simplify right side
   3,965.02x = 21,446,456.38
5. Step 5: Solve for x
   x = 21,446,456.38/3,965.02
6. Step 6: Final answer
   x = 5,408.92