import sys
input = sys.stdin.readline
from math import gcd

def extGCD(a, b):
    # ax + by = gcd(a, b)の解を求める
    if b == 0:
        return 1, 0
    q = a // b
    r = a % b
    X, Y = extGCD(b, r)
    return Y, X - q * Y

T = int(input())
mod = 10**9 + 7
for _ in range(T):
    N, K, H, Y = map(int, input().split())
    A = [N, K, H]
    A.sort()
    g = gcd(A[0], A[1])
    ans = 0
    for i in range(10 ** 6 + 5):
        C = Y - i * A[-1]
        if C < 0:
            break
        if C % g != 0:
            continue
        c = C // g
        n, k = A[0]//g, A[1]//g
        p, q = extGCD(n, k)
        ma = c * q // n
        mi = (-c * p + k - 1)//k
        ans += max(0, (ma - mi) + 1)
        ans %= mod
        # print("test", i, p, q, C, g)
    print(ans)