#include <iostream>
#include <cstdio>
#include <algorithm>
using namespace std;
int test, n;
double maxN, minN, avg;

int main() {
    scanf("%d", &test);
    while(test--) {
        scanf("%d%lf%lf%lf", &n, &maxN, &minN, &avg);
        if (minN <= avg && avg <= maxN) {
            if ((avg * n >= (maxN + (n - 1) * minN)) && (avg * n <= (minN + (n - 1) * maxN))) {
                printf("yes\n");
            } else {
                printf("no\n");
            }
        } else {
            printf("no\n");
        }
    }
    return 0;
}