/*
    Author: Zhikun Wang
*/
#include <bits/stdc++.h>
#define debug(x) cout<<#x<<'='<<x<<endl

using namespace std;
template<typename T> void read(T &x){
    x = 0;int f = 1;char ch = getchar();
    while(!isdigit(ch)){if(ch == '-')f*=-1;ch = getchar();}
    while(isdigit(ch)){x = x*10+ch-48; ch = getchar();}x*=f;
}
template<typename T, typename ... Args> void read(T &x,Args&... nxt){
    read(x);
    read(nxt...);
}

#define rep(i,a,b) for(int i=a;i<(b);++i)
#define all(x) begin(x),end(x)
#define sz(x) (int)(x).size()
typedef long long ll;
typedef pair<int,int> pii;
typedef vector<int> vi;

int T;
int main(){
    read(T);
    while(T--){
        int a,b,c,d;
        read(a,c,b,d);
        if(b>c){
            cout<<"no\n";
            continue;
        }
        if(a == 1){
            if(b == c && c == d){
                cout<<"yes\n";
            }else{
                cout<<"no\n";
            }
            continue;
        }
        int mx = b+(a-1)*c,mi = c+(a-1)*b;
        if(mi<=d*a && d*a<=mx){
            cout<<"yes\n";
        }else{
            cout<<"no\n";
        }
    }
    return 0;
}