Instantiating an Object doesn't use the given position.

Hi, I'm trying to Instantiate a prefab at a randomly generated position, but it always appears at the position the prefab had, when I originally created it. I already looked for similar questions, but I coulnd't find any... Anyways, here is my current code:

 using UnityEngine;
 using System.Collections;
 
 public class AppleManage : MonoBehaviour {
 
     public GameObject Apple;
 
     void Start ()
     {
         InvokeRepeating ("Spawn", 3f, 3f);
     }
 
     void Spawn () 
     {
         int s = Random.Range (1, 4);
 
         if (s == 1)
         {
             Vector3 position = new Vector3(Random.Range(-4.5F, 4.5F), Random.Range(-4.5F, 4.5F), 5.5F);
              Instantiate(Apple, position, Quaternion.identity); 
         }
 
         if (s == 2)
         {
             Vector3 position = new Vector3(5.5F, Random.Range(-4.5F, 4.5F), Random.Range(-4.5F, 4.5F));
             Instantiate(Apple, position, Quaternion.identity); 
         }
 
         if (s == 3)
         {
             Vector3 position = new Vector3(Random.Range (-4.5F, 4.5F), 5.5F, Random.Range(-4.5F, 4.5F));
             Instantiate(Apple, position, Quaternion.identity); 
         }
     }
 }