Help with the last Jump (Construction site)

Hi, I have looked through all Walkthroughs to try and help me but the last jump (after using the batterang to bring down the Bucket. You climb up the rope and use the battarang again to bring down the fence. Climb the fence onto the platform and then use the batterang to bring down the last fence) It's this particular jump I am struggling with as all walkthroughs say it's a simple jump but no matter what position or double jump I do I always end up missing the fence and gliding down to the bucket. Can anyone help in regards to where I should position myself on the platform. Whether I should run and jump (which I have tried) but maybe be more specific as opposed to just saying run and jump?

Thanks