Which of the following is the correct decreasing order of the strengths of four fundamental forces of nature ?
1) Gravitational force > electromagnetic force > strong nuclear force > weak nuclear force
2) Electromagnetic force > weak nuclear force > gravitational force > strong nuclear force
3) Strong nuclear force > weak nuclear force > electromagnetic force > gravitational force
4) Strong nuclear force > electromagnetic force > weak nuclear force > gravitational force
4) Strong nuclear force > electromagnetic force > weak nuclear force > gravitational force